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12222222010 = 253253137571
BaseRepresentation
bin10110110001000000…
…00100111010111010
31011112210021012122021
423120200010322322
5200012342101020
65340444345054
7611610113215
oct133040047272
934483235567
1012222222010
115202142329
12245124518a
1311ca1cc73b
1483d34677c
154b80191aa
hex2d8804eba

12222222010 has 16 divisors (see below), whose sum is σ = 22001261472. Its totient is φ = 4888608400.

The previous prime is 12222221969. The next prime is 12222222031. The reversal of 12222222010 is 1022222221.

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, 306525 + ... + 344095.

It is an arithmetic number, because the mean of its divisors is an integer number (1375078842).

Almost surely, 212222222010 is an apocalyptic number.

12222222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12222222010 is a deficient number, since it is larger than the sum of its proper divisors (9779039462).

12222222010 is a wasteful number, since it uses less digits than its factorization.

12222222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70109.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12222222010 its reverse (1022222221), we get a palindrome (13244444231).

The spelling of 12222222010 in words is "twelve billion, two hundred twenty-two million, two hundred twenty-two thousand, ten".

Divisors: 1 2 5 10 32531 37571 65062 75142 162655 187855 325310 375710 1222222201 2444444402 6111111005 12222222010