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122231032212 = 22310185919351
BaseRepresentation
bin111000111010110001…
…0011000100110010100
3102200111111020210100010
41301311202120212110
54000312121012322
6132052511120220
711554666426332
oct1616542304624
9380444223303
10122231032212
114792425a6a3
121b832b13070
13b6ac492783
145cb7780b52
1532a5ca220c
hex1c75898994

122231032212 has 12 divisors (see below), whose sum is σ = 285205741856. Its totient is φ = 40743677400.

The previous prime is 122231032163. The next prime is 122231032241. The reversal of 122231032212 is 212230132221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1222310322122 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5092959664 + ... + 5092959687.

Almost surely, 2122231032212 is an apocalyptic number.

122231032212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122231032212 is an abundant number, since it is smaller than the sum of its proper divisors (162974709644).

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

122231032212 is a wasteful number, since it uses less digits than its factorization.

122231032212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10185919358 (or 10185919356 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 122231032212 its reverse (212230132221), we get a palindrome (334461164433).

The spelling of 122231032212 in words is "one hundred twenty-two billion, two hundred thirty-one million, thirty-two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 10185919351 20371838702 30557758053 40743677404 61115516106 122231032212