# Divisors of the Positive Integer 1221

1, 3, 11, 33, 37, 111, 407, 1221## Sum of all the Divisors of 1221, including itself

1824## Sum of the Proper Divisors of 1221

603## Properties of the number 1221

The integer 1221 is an**odd**number.

The integer 1221 is a

**Composite**number.

603 is

*less than*1221, so 1221 is a

**deficient**number.

## The number 1221 as a Roman Numeral

**MCCXXI**

## The number 1221 in various Numeral Systems

Base |
Representation |
---|---|

2: | 10011000101 |

3: | 1200020 |

4: | 103011 |

5: | 14341 |

6: | 5353 |

7: | 3363 |

8: | 2305 |

9: | 1606 |

10: | 1221 |

11: | A10 |

12: | 859 |

13: | 72C |

14: | 633 |

15: | 566 |

16: | 4C5 |

17: | 43E |

18: | 3DF |

19: | 375 |

20: | 311 |

21: | 2G3 |

22: | 2BB |

23: | 272 |

24: | 22L |

25: | 1NL |

26: | 1KP |

27: | 1I6 |

28: | 1FH |

29: | 1D3 |

30: | 1AL |

31: | 18C |

32: | 165 |

33: | 140 |

34: | 11V |

35: | YV |

36: | XX |