Q: What is the negative version of the number 21,221,520?
A: -21,221,520
Negative numbers are usually written with - in front of them. They represent a number that is less than zero.
Here are more examples of negative numbers in sequence:
| 21,221,518 | 21,221,519 | 21,221,521 | 21,221,522 |
| -21,221,518 | -21,221,519 | -21,221,521 | -21,221,522 |