Q: What is the negative version of the number 21,513,201?
A: -21,513,201
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:
| 21,513,199 | 21,513,200 | 21,513,202 | 21,513,203 |
| -21,513,199 | -21,513,200 | -21,513,202 | -21,513,203 |