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122212012102211 = 139879223108649
BaseRepresentation
bin11011110010011010110011…
…100100011001001001000011
3121000201100120020210120212102
4123302122303210121021003
5112004310200044232321
61111531231233021015
734512345405626333
oct3362326344311103
9530640506716772
10122212012102211
1135a38906853399
121185960b6b476b
13532670a7c13a5
14222714308d0c3
15e1e035418c0b
hex6f26b3919243

122212012102211 has 4 divisors (see below), whose sum is σ = 123091235211000. Its totient is φ = 121332788993424.

The previous prime is 122212012102207. The next prime is 122212012102217. The reversal of 122212012102211 is 112201210212221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122212012102211 - 22 = 122212012102207 is a prime.

It is a super-2 number, since 2×1222120121022112 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122212012102217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439611554186 + ... + 439611554463.

It is an arithmetic number, because the mean of its divisors is an integer number (30772808802750).

Almost surely, 2122212012102211 is an apocalyptic number.

122212012102211 is a deficient number, since it is larger than the sum of its proper divisors (879223108789).

122212012102211 is an equidigital number, since it uses as much as digits as its factorization.

122212012102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879223108788.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 122212012102211 its reverse (112201210212221), we get a palindrome (234413222314432).

The spelling of 122212012102211 in words is "one hundred twenty-two trillion, two hundred twelve billion, twelve million, one hundred two thousand, two hundred eleven".

Divisors: 1 139 879223108649 122212012102211