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122100213122013 = 3731187557931063
BaseRepresentation
bin11011110000110010101011…
…110101001000001111011101
3121000022122222210021221121010
4123300302223311020033131
5112000442214024401023
61111404021420525433
734501310051156550
oct3360625365101735
9530278883257533
10122100213122013
11359a5456185895
121183ba0a3b0879
1353190016a0679
142221978dba697
15e1b19041a093
hex6f0cabd483dd

122100213122013 has 16 divisors (see below), whose sum is σ = 192059321409536. Its totient is φ = 67520855182320.

The previous prime is 122100213122011. The next prime is 122100213122059. The reversal of 122100213122013 is 310221312001221.

It is not a de Polignac number, because 122100213122013 - 21 = 122100213122011 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100213122011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93778964881 + ... + 93778966182.

It is an arithmetic number, because the mean of its divisors is an integer number (12003707588096).

Almost surely, 2122100213122013 is an apocalyptic number.

It is an amenable number.

122100213122013 is a deficient number, since it is larger than the sum of its proper divisors (69959108287523).

122100213122013 is a wasteful number, since it uses less digits than its factorization.

122100213122013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187557931104.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 122100213122013 its reverse (310221312001221), we get a palindrome (432321525123234).

The spelling of 122100213122013 in words is "one hundred twenty-two trillion, one hundred billion, two hundred thirteen million, one hundred twenty-two thousand, thirteen".

Divisors: 1 3 7 21 31 93 217 651 187557931063 562673793189 1312905517441 3938716552323 5814295862953 17442887588859 40700071040671 122100213122013