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122121202222012 = 2274361471507929
BaseRepresentation
bin11011110001000110001110…
…111000001100001110111100
3121000101200011112222200222011
4123301012032320030032330
5112001313210232101022
61111421412242101004
734502652143446120
oct3361061670141674
9530350145880864
10122121202222012
1135a03346a63324
1211843aa764a764
13531ac97c6a076
1422229aa7b3580
15e1b9bce12977
hex6f118ee0c3bc

122121202222012 has 12 divisors (see below), whose sum is σ = 244242404444080. Its totient is φ = 52337658095136.

The previous prime is 122121202221881. The next prime is 122121202222057. The reversal of 122121202222012 is 210222202121221.

122121202222012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

122121202222012 is an admirable number.

It is a super-2 number, since 2×1221212022220122 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2180735753937 + ... + 2180735753992.

Almost surely, 2122121202222012 is an apocalyptic number.

It is an amenable number.

122121202222012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

122121202222012 is a wasteful number, since it uses less digits than its factorization.

122121202222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4361471507940 (or 4361471507938 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 122121202222012 its reverse (210222202121221), we get a palindrome (332343404343233).

The spelling of 122121202222012 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, two hundred two million, two hundred twenty-two thousand, twelve".

Divisors: 1 2 4 7 14 28 4361471507929 8722943015858 17445886031716 30530300555503 61060601111006 122121202222012