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12122203112 = 231917933379
BaseRepresentation
bin10110100101000101…
…00010001111101000
31011021211001201111122
423102202202033220
5144311240444422
65322512514412
7606254012015
oct132242421750
934254051448
1012122203112
115160738688
12242384ba08
1311b2580466
1482dd4c70c
154ae35dd42
hex2d28a23e8

12122203112 has 16 divisors (see below), whose sum is σ = 22848134400. Its totient is φ = 6029367280.

The previous prime is 12122203097. The next prime is 12122203139. The reversal of 12122203112 is 21130222121.

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, 3965162 + ... + 3968217.

It is an arithmetic number, because the mean of its divisors is an integer number (1428008400).

Almost surely, 212122203112 is an apocalyptic number.

It is an amenable number.

12122203112 is a deficient number, since it is larger than the sum of its proper divisors (10725931288).

12122203112 is a wasteful number, since it uses less digits than its factorization.

12122203112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7933576 (or 7933572 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12122203112 its reverse (21130222121), we get a palindrome (33252425233).

The spelling of 12122203112 in words is "twelve billion, one hundred twenty-two million, two hundred three thousand, one hundred twelve".

Divisors: 1 2 4 8 191 382 764 1528 7933379 15866758 31733516 63467032 1515275389 3030550778 6061101556 12122203112