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122112212232231 = 32131795830693417
BaseRepresentation
bin11011110000111101110111…
…000010000110100000100111
3121000100210222000201220101200
4123300331313002012200213
5112001141302312412411
61111413324215253543
734502213312006304
oct3360756702064047
9530323860656350
10122112212232231
11359aa553389a01
12118421b897a2b3
13531a1945b31a0
1422223968460ab
15e1b643a61e56
hex6f0f77086827

122112212232231 has 24 divisors (see below), whose sum is σ = 191013516373680. Its totient is φ = 74726166819456.

The previous prime is 122112212232211. The next prime is 122112212232319. The reversal of 122112212232231 is 132232212211221.

122112212232231 is a `hidden beast` number, since 1 + 2 + 211 + 2 + 2 + 1 + 223 + 223 + 1 = 666.

It is not a de Polignac number, because 122112212232231 - 213 = 122112212224039 is a prime.

It is a super-2 number, since 2×1221122122322312 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122112212232195 and 122112212232204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122112212232211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2915325766 + ... + 2915367651.

It is an arithmetic number, because the mean of its divisors is an integer number (7958896515570).

Almost surely, 2122112212232231 is an apocalyptic number.

122112212232231 is a deficient number, since it is larger than the sum of its proper divisors (68901304141449).

122112212232231 is a wasteful number, since it uses less digits than its factorization.

122112212232231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5830693615 (or 5830693612 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 122112212232231 its reverse (132232212211221), we get a palindrome (254344424443452).

The spelling of 122112212232231 in words is "one hundred twenty-two trillion, one hundred twelve billion, two hundred twelve million, two hundred thirty-two thousand, two hundred thirty-one".

Divisors: 1 3 9 13 39 117 179 537 1611 2327 6981 20943 5830693417 17492080251 52476240753 75799014421 227397043263 682191129789 1043694121643 3131082364929 9393247094787 13568023581359 40704070744077 122112212232231