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12133222140 = 22351315555413
BaseRepresentation
bin10110100110011001…
…00100011011111100
31011022120210112202210
423103030210123330
5144322101102030
65323545020420
7606446454324
oct132314443374
934276715683
1012133222140
115166984416
122427484710
1311b493aab0
148315ba284
154b02d8bb0
hex2d33246fc

12133222140 has 48 divisors (see below), whose sum is σ = 36586333728. Its totient is φ = 2986639104.

The previous prime is 12133222139. The next prime is 12133222169. The reversal of 12133222140 is 4122233121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7776927 + ... + 7778486.

It is an arithmetic number, because the mean of its divisors is an integer number (762215286).

Almost surely, 212133222140 is an apocalyptic number.

12133222140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12133222140 is an abundant number, since it is smaller than the sum of its proper divisors (24453111588).

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

12133222140 is a wasteful number, since it uses less digits than its factorization.

12133222140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15555438 (or 15555436 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12133222140 its reverse (4122233121), we get a palindrome (16255455261).

The spelling of 12133222140 in words is "twelve billion, one hundred thirty-three million, two hundred twenty-two thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 15555413 31110826 46666239 62221652 77777065 93332478 155554130 186664956 202220369 233331195 311108260 404440738 466662390 606661107 808881476 933324780 1011101845 1213322214 2022203690 2426644428 3033305535 4044407380 6066611070 12133222140