Q: What is the negative version of the number 221,521,207?
A: -221,521,207
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:
| 221,521,205 | 221,521,206 | 221,521,208 | 221,521,209 |
| -221,521,205 | -221,521,206 | -221,521,208 | -221,521,209 |