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22132201220 = 22510310743787
BaseRepresentation
bin10100100111001011…
…101001011100000100
32010010102122022110022
4110213023221130010
5330311320414340
614100053514312
71412312414663
oct244713513404
963112568408
1022132201220
119428061398
124358042998
13211935b66c
1410dd554dda
158980443b5
hex5272e9704

22132201220 has 24 divisors (see below), whose sum is σ = 46928865984. Its totient is φ = 8766929376.

The previous prime is 22132201193. The next prime is 22132201297. The reversal of 22132201220 is 2210223122.

It is a super-3 number, since 3×221322012203 (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5369834 + ... + 5373953.

It is an arithmetic number, because the mean of its divisors is an integer number (1955369416).

Almost surely, 222132201220 is an apocalyptic number.

22132201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22132201220 is an abundant number, since it is smaller than the sum of its proper divisors (24796664764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22132201220 is a wasteful number, since it uses less digits than its factorization.

22132201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10743899 (or 10743897 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22132201220 its reverse (2210223122), we get a palindrome (24342424342).

The spelling of 22132201220 in words is "twenty-two billion, one hundred thirty-two million, two hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 103 206 412 515 1030 2060 10743787 21487574 42975148 53718935 107437870 214875740 1106610061 2213220122 4426440244 5533050305 11066100610 22132201220