Q: What is the negative version of the number 221,511,015?
A: -221,511,015
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:
| 221,511,013 | 221,511,014 | 221,511,016 | 221,511,017 |
| -221,511,013 | -221,511,014 | -221,511,016 | -221,511,017 |