Q: What is the negative version of the number 21,211,511?
A: -21,211,511
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:
| 21,211,509 | 21,211,510 | 21,211,512 | 21,211,513 |
| -21,211,509 | -21,211,510 | -21,211,512 | -21,211,513 |