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122112202101102 = 232431279123352387
BaseRepresentation
bin11011110000111101110110…
…011011011101000101101110
3121000100210221022200012002200
4123300331312123131011232
5112001141242214213402
61111413323214202330
734502213126622423
oct3360756633350556
9530323838605080
10122112202101102
11359aa54869a274
12118421b54b33a6
13531a192476a35
142222395369d4a
15e1b642c1021c
hex6f0f766dd16e

122112202101102 has 48 divisors (see below), whose sum is σ = 270941053194240. Its totient is φ = 39726376025616.

The previous prime is 122112202101101. The next prime is 122112202101121. The reversal of 122112202101102 is 201101202211221.

122112202101102 is a `hidden beast` number, since 1 + 221 + 1 + 220 + 210 + 1 + 10 + 2 = 666.

It is a super-2 number, since 2×1221122021011022 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122112202101101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60686248 + ... + 62666139.

It is an arithmetic number, because the mean of its divisors is an integer number (5644605274880).

Almost surely, 2122112202101102 is an apocalyptic number.

122112202101102 is an abundant number, since it is smaller than the sum of its proper divisors (148828851093138).

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

122112202101102 is a wasteful number, since it uses less digits than its factorization.

122112202101102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123353717 (or 123353714 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 122112202101102 its reverse (201101202211221), we get a palindrome (323213404312323).

The spelling of 122112202101102 in words is "one hundred twenty-two trillion, one hundred twelve billion, two hundred two million, one hundred one thousand, one hundred two".

Divisors: 1 2 3 6 9 18 43 86 129 258 387 774 1279 2558 3837 7674 11511 23022 54997 109994 164991 329982 494973 989946 123352387 246704774 370057161 740114322 1110171483 2220342966 5304152641 10608305282 15912457923 31824915846 47737373769 95474747538 157767702973 315535405946 473303108919 946606217838 1419909326757 2839818653514 6784011227839 13568022455678 20352033683517 40704067367034 61056101050551 122112202101102