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12212210120 = 2351127755023
BaseRepresentation
bin10110101111110011…
…11000100111001000
31011112002102112220112
423113321320213020
5200002311210440
65335450013452
7611426034065
oct132771704710
934462375815
1012212210120
1151a7524240
122449a17288
1311c8105646
1483bc9bc6c
154b71dc965
hex2d7e789c8

12212210120 has 32 divisors (see below), whose sum is σ = 29975425920. Its totient is φ = 4440803520.

The previous prime is 12212210053. The next prime is 12212210147. The reversal of 12212210120 is 2101221221.

It is a junction number, because it is equal to n+sod(n) for n = 12212210095 and 12212210104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13877072 + ... + 13877951.

It is an arithmetic number, because the mean of its divisors is an integer number (936732060).

Almost surely, 212212210120 is an apocalyptic number.

12212210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212210120 is an abundant number, since it is smaller than the sum of its proper divisors (17763215800).

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

12212210120 is a wasteful number, since it uses less digits than its factorization.

12212210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27755045 (or 27755041 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12212210120 its reverse (2101221221), we get a palindrome (14313431341).

The spelling of 12212210120 in words is "twelve billion, two hundred twelve million, two hundred ten thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 27755023 55510046 111020092 138775115 222040184 277550230 305305253 555100460 610610506 1110200920 1221221012 1526526265 2442442024 3053052530 6106105060 12212210120