Talen 2221 till 2227 i romerska siffror
I högerkolumnen visas hur varje romersk siffra bidrar till att man hamnar vid rätt tal.
| 2221 | = | MMCCXXI | = | 1000 + 1000 + 100 + 100 + 10 + 10 + 1 |
| 2222 | = | MMCCXXII | = | 1000 + 1000 + 100 + 100 + 10 + 10 + 1 + 1 |
| 2223 | = | MMCCXXIII | = | 1000 + 1000 + 100 + 100 + 10 + 10 + 1 + 1 + 1 |
| 2224 | = | MMCCXXIV | = | 1000 + 1000 + 100 + 100 + 10 + 10 + 5 − 1 |
| 2225 | = | MMCCXXV | = | 1000 + 1000 + 100 + 100 + 10 + 10 + 5 |
| 2226 | = | MMCCXXVI | = | 1000 + 1000 + 100 + 100 + 10 + 10 + 5 + 1 |
| 2227 | = | MMCCXXVII | = | 1000 + 1000 + 100 + 100 + 10 + 10 + 5 + 1 + 1 |