Q: What is the negative version of the number 221,431,145?
A: -221,431,145
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:
| 221,431,143 | 221,431,144 | 221,431,146 | 221,431,147 |
| -221,431,143 | -221,431,144 | -221,431,146 | -221,431,147 |