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12211212130232 = 2317127706994681
BaseRepresentation
bin1011000110110010010011…
…1101100001011110111000
31121020101021100222000111112
42301230210331201132320
53100032030301131412
641545430423015452
72400142135340603
oct261544475413670
947211240860445
1012211212130232
1139888229a1435
12145274629a588
136a7687879a3b
14303050bcd33a
15162995887722
hexb1b24f617b8

12211212130232 has 32 divisors (see below), whose sum is σ = 24433736209920. Its totient is φ = 5701205099520.

The previous prime is 12211212130199. The next prime is 12211212130261. The reversal of 12211212130232 is 23203121211221.

It is a super-2 number, since 2×122112121302322 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12211212130198 and 12211212130207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353480069 + ... + 353514612.

It is an arithmetic number, because the mean of its divisors is an integer number (763554256560).

Almost surely, 212211212130232 is an apocalyptic number.

It is an amenable number.

12211212130232 is an abundant number, since it is smaller than the sum of its proper divisors (12222524079688).

12211212130232 is a wasteful number, since it uses less digits than its factorization.

12211212130232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706994831 (or 706994827 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 12211212130232 its reverse (23203121211221), we get a palindrome (35414333341453).

The spelling of 12211212130232 in words is "twelve trillion, two hundred eleven billion, two hundred twelve million, one hundred thirty thousand, two hundred thirty-two".

Divisors: 1 2 4 8 17 34 68 127 136 254 508 1016 2159 4318 8636 17272 706994681 1413989362 2827978724 5655957448 12018909577 24037819154 48075638308 89788324487 96151276616 179576648974 359153297948 718306595896 1526401516279 3052803032558 6105606065116 12211212130232