Q: What is the negative version of the number 215,522,421?
A: -215,522,421
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:
| 215,522,419 | 215,522,420 | 215,522,422 | 215,522,423 |
| -215,522,419 | -215,522,420 | -215,522,422 | -215,522,423 |