What is a 22-digit number?

A 22-digit number is a number that has 22 digits where the first digit must be 1 or greater. On this page, we will answer three questions for you: What is the smallest 22-digit number? What is the largest 22-digit number? How many 22-digit numbers are there?

Smallest 22-digit number
The smallest 22-digit number is 1 followed by 21 zeros. This number is called one sextillion.

Largest 22-digit number
The largest 22-digit number is 9 followed by another 21 nines. This number is called nine sextillion nine hundred ninety-nine quintillion nine hundred ninety-nine quadrillion nine hundred ninety-nine trillion nine hundred ninety-nine billion nine hundred ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-nine.

Total number of 22-digit numbers
There are a total of nine sextillion different 22-digit numbers. nine sextillion is 9 followed by 21 zeros.

Digit Numbers
Here you can learn about another digit number.

What is a 23-digit number?
Go here for information about the next digit number on our list that we have information about.