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12210131123132 = 2216974127435857
BaseRepresentation
bin1011000110101110010010…
…0001110011101110111100
31121020021111000212011112112
42301223210201303232330
53100022322031420012
641545131245153152
72400103301050445
oct261534441635674
947207430764475
1012210131123132
113988318779838
1214524a425b7b8
136a7544918c77
14302d8b3d62cc
15162930a04122
hexb1ae4873bbc

12210131123132 has 24 divisors (see below), whose sum is σ = 21385550600064. Its totient is φ = 6099975575552.

The previous prime is 12210131123101. The next prime is 12210131123137. The reversal of 12210131123132 is 23132113101221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12210131123098 and 12210131123107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210131123137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27796148 + ... + 28232004.

It is an arithmetic number, because the mean of its divisors is an integer number (891064608336).

Almost surely, 212210131123132 is an apocalyptic number.

It is an amenable number.

12210131123132 is a deficient number, since it is larger than the sum of its proper divisors (9175419476932).

12210131123132 is a wasteful number, since it uses less digits than its factorization.

12210131123132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441685 (or 441683 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12210131123132 its reverse (23132113101221), we get a palindrome (35342244224353).

The spelling of 12210131123132 in words is "twelve trillion, two hundred ten billion, one hundred thirty-one million, one hundred twenty-three thousand, one hundred thirty-two".

Divisors: 1 2 4 1697 3394 4127 6788 8254 16508 435857 871714 1743428 7003519 14007038 28014076 739649329 1479298658 1798781839 2958597316 3597563678 7195127356 3052532780783 6105065561566 12210131123132