Q: What is the negative version of the number 21,420,511?
A: -21,420,511
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:
| 21,420,509 | 21,420,510 | 21,420,512 | 21,420,513 |
| -21,420,509 | -21,420,510 | -21,420,512 | -21,420,513 |