Q: What is the negative version of the number 817,550,221?
A: -817,550,221
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:
| 817,550,219 | 817,550,220 | 817,550,222 | 817,550,223 |
| -817,550,219 | -817,550,220 | -817,550,222 | -817,550,223 |