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122330203212 = 22371976647997
BaseRepresentation
bin111000111101101110…
…0101100010001001100
3102200202101212012101010
41301323130230101030
54001013013000322
6132110412445220
711560312366530
oct1617334542114
9380671765333
10122330203212
11479752352a8
121b860179810
13b6c6ba5b39
145cc69d7bc0
1532ae84120c
hex1c7b72c44c

122330203212 has 48 divisors (see below), whose sum is σ = 343383031040. Its totient is φ = 33111934272.

The previous prime is 122330203211. The next prime is 122330203217. The reversal of 122330203212 is 212302033221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (122330203211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38322403 + ... + 38325594.

Almost surely, 2122330203212 is an apocalyptic number.

122330203212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122330203212 is an abundant number, since it is smaller than the sum of its proper divisors (221052827828).

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

122330203212 is a wasteful number, since it uses less digits than its factorization.

122330203212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76648030 (or 76648028 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 122330203212 its reverse (212302033221), we get a palindrome (334632236433).

The spelling of 122330203212 in words is "one hundred twenty-two billion, three hundred thirty million, two hundred three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 19 21 28 38 42 57 76 84 114 133 228 266 399 532 798 1596 76647997 153295994 229943991 306591988 459887982 536535979 919775964 1073071958 1456311943 1609607937 2146143916 2912623886 3219215874 4368935829 5825247772 6438431748 8737871658 10194183601 17475743316 20388367202 30582550803 40776734404 61165101606 122330203212