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12212200032 = 253127210417
BaseRepresentation
bin10110101111110011…
…10110001001100000
31011112002102001001220
423113321312021200
5200002310400112
65335445455040
7611425662504
oct132771661140
934462361056
1012212200032
1151a75176aa
122449a11480
1311c8100b86
1483bc98304
154b71d998c
hex2d7e76260

12212200032 has 24 divisors (see below), whose sum is σ = 32057025336. Its totient is φ = 4070733312.

The previous prime is 12212199977. The next prime is 12212200043. The reversal of 12212200032 is 23000221221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 12212199984 and 12212200020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63605113 + ... + 63605304.

It is an arithmetic number, because the mean of its divisors is an integer number (1335709389).

Almost surely, 212212200032 is an apocalyptic number.

12212200032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12212200032 is an abundant number, since it is smaller than the sum of its proper divisors (19844825304).

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

12212200032 is a wasteful number, since it uses less digits than its factorization.

12212200032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127210430 (or 127210422 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12212200032 its reverse (23000221221), we get a palindrome (35212421253).

The spelling of 12212200032 in words is "twelve billion, two hundred twelve million, two hundred thousand, thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 127210417 254420834 381631251 508841668 763262502 1017683336 1526525004 2035366672 3053050008 4070733344 6106100016 12212200032