Q: What is the negative version of the number 221,321,663?
A: -221,321,663
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:
| 221,321,661 | 221,321,662 | 221,321,664 | 221,321,665 |
| -221,321,661 | -221,321,662 | -221,321,664 | -221,321,665 |