Q: What is the negative version of the number 21,780,121?
A: -21,780,121
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:
| 21,780,119 | 21,780,120 | 21,780,122 | 21,780,123 |
| -21,780,119 | -21,780,120 | -21,780,122 | -21,780,123 |