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122112202100111 = 1929221619241561
BaseRepresentation
bin11011110000111101110110…
…011011011100110110001111
3121000100210221022200010201222
4123300331312123130312033
5112001141242214200421
61111413323214153555
734502213126616506
oct3360756633346617
9530323838603658
10122112202100111
11359aa548699553
12118421b54b28bb
13531a192476452
14222239536983d
15e1b642c0ecab
hex6f0f766dcd8f

122112202100111 has 8 divisors (see below), whose sum is σ = 132971544937200. Its totient is φ = 111696097746240.

The previous prime is 122112202100051. The next prime is 122112202100131. The reversal of 122112202100111 is 111001202211221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122112202100111 - 230 = 122111128358287 is a prime.

It is a super-2 number, since 2×1221122021001112 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122112202100111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122112202100131) 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, 110809620230 + ... + 110809621331.

It is an arithmetic number, because the mean of its divisors is an integer number (16621443117150).

Almost surely, 2122112202100111 is an apocalyptic number.

122112202100111 is a deficient number, since it is larger than the sum of its proper divisors (10859342837089).

122112202100111 is a wasteful number, since it uses less digits than its factorization.

122112202100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221619241609.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 122112202100111 its reverse (111001202211221), we get a palindrome (233113404311332).

The spelling of 122112202100111 in words is "one hundred twenty-two trillion, one hundred twelve billion, two hundred two million, one hundred thousand, one hundred eleven".

Divisors: 1 19 29 551 221619241561 4210765589659 6426958005269 122112202100111