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122331000012 = 22313784173077
BaseRepresentation
bin111000111101101111…
…1101110110011001100
3102200202110100200101020
41301323133232303030
54001013214000022
6132110441514140
711560322225544
oct1617337566314
9380673320336
10122331000012
1147975729a11
121b8604a2950
13b6c70c4710
145cc6b64324
1532ae94c35c
hex1c7b7eeccc

122331000012 has 24 divisors (see below), whose sum is σ = 307395846576. Its totient is φ = 37640307648.

The previous prime is 122330999981. The next prime is 122331000017. The reversal of 122331000012 is 210000133221.

It is a junction number, because it is equal to n+sod(n) for n = 122330999955 and 122331000000.

It is not an unprimeable number, because it can be changed into a prime (122331000017) 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, 392086383 + ... + 392086694.

It is an arithmetic number, because the mean of its divisors is an integer number (12808160274).

Almost surely, 2122331000012 is an apocalyptic number.

122331000012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122331000012 is an abundant number, since it is smaller than the sum of its proper divisors (185064846564).

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

122331000012 is a wasteful number, since it uses less digits than its factorization.

122331000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784173097 (or 784173095 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 122331000012 its reverse (210000133221), we get a palindrome (332331133233).

The spelling of 122331000012 in words is "one hundred twenty-two billion, three hundred thirty-one million, twelve", and thus it is an aban number.

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 784173077 1568346154 2352519231 3136692308 4705038462 9410076924 10194250001 20388500002 30582750003 40777000004 61165500006 122331000012