sextillion
noun
sex·til·lion
seks-ˈtil-yən 
often attributive
US
: a number equal to 1 followed by 21 zeros see Table of Numbers
Examples of sextillion in a Sentence
Recent Examples on the Web
Or, to put it another way, 200 sextillion.
—
Brian Jackson, The Conversation, 20 Sep. 2021
Transmogrified Planets About half of Mercury’s mass—2 sextillion pounds or so—would be usable in the form of the elements oxygen and iron, Armstrong reckons.
—Adam Hadhazy, Popular Mechanics, 7 Mar. 2023
Less than one in about 600 sextillion, in fact, Cronin says.
—Natalie Elliot, Scientific American, 23 Nov. 2021
This endless search for information is costing businesses productivity, and this challenge is only growing due to skyrocketing data volumes — 59 sextillion bytes in 2020 alone.
—Marc Vontobel, Forbes, 1 Nov. 2021
The team found that upper ocean waters contained 234 sextillion, or 1021, joules more heat energy in 2020 than the annual average from 1981 to 2010.
—Todd Nelson, Star Tribune, 16 Jan. 2021
Intel and Micron emerged, and since then, humans have made more MOSFETs than any other artifact in our species’ history—over 13 sextillion, or 13 followed by 21 zeroes.
—David Lumb, Popular Mechanics, 9 Dec. 2020
About half of Mercury's mass—2 sextillion pounds or so—would be usable in the form of the elements oxygen and iron, Armstrong reckons.
—Adam Hadhazy, Popular Mechanics, 30 Oct. 2020
But, Loeb says, such objects are probably numerous, with perhaps 60 sextillion similarly sized rocks launched outward by a single star.
—Nadia Drake, National Geographic, 16 Apr. 2019
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Brian Jackson, The Conversation, 20 Sep. 2021
Transmogrified Planets About half of Mercury’s mass—2 sextillion pounds or so—would be usable in the form of the elements oxygen and iron, Armstrong reckons.
—Adam Hadhazy, Popular Mechanics, 7 Mar. 2023
Less than one in about 600 sextillion, in fact, Cronin says.
—Natalie Elliot, Scientific American, 23 Nov. 2021
This endless search for information is costing businesses productivity, and this challenge is only growing due to skyrocketing data volumes — 59 sextillion bytes in 2020 alone.
—Marc Vontobel, Forbes, 1 Nov. 2021
The team found that upper ocean waters contained 234 sextillion, or 1021, joules more heat energy in 2020 than the annual average from 1981 to 2010.
—Todd Nelson, Star Tribune, 16 Jan. 2021
Intel and Micron emerged, and since then, humans have made more MOSFETs than any other artifact in our species’ history—over 13 sextillion, or 13 followed by 21 zeroes.
—David Lumb, Popular Mechanics, 9 Dec. 2020
About half of Mercury's mass—2 sextillion pounds or so—would be usable in the form of the elements oxygen and iron, Armstrong reckons.
—Adam Hadhazy, Popular Mechanics, 30 Oct. 2020
But, Loeb says, such objects are probably numerous, with perhaps 60 sextillion similarly sized rocks launched outward by a single star.
—Nadia Drake, National Geographic, 16 Apr. 2019
Cite this Entry
“Sextillion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sextillion. Accessed 9 Jul. 2025.
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sextillion
noun
sex·til·lion
sek-ˈstil-yən
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Merriam-Webster unabridged
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