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120122021012 = 22717252357187
BaseRepresentation
bin110111111011111010…
…1001001010010010100
3102111001111202220212012
41233313311021102110
53432002214133022
6131103331443352
711451510221540
oct1576765112224
9374044686765
10120122021012
1146a41827334
121b344756558
13b43456b156
145b5762aa20
1531d0a59de2
hex1bf7d49494

120122021012 has 24 divisors (see below), whose sum is σ = 254376045504. Its totient is φ = 48452579712.

The previous prime is 120122021009. The next prime is 120122021017. The reversal of 120122021012 is 210120221021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120122021017) 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, 126178118 + ... + 126179069.

It is an arithmetic number, because the mean of its divisors is an integer number (10599001896).

Almost surely, 2120122021012 is an apocalyptic number.

It is an amenable number.

120122021012 is an abundant number, since it is smaller than the sum of its proper divisors (134254024492).

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

120122021012 is a wasteful number, since it uses less digits than its factorization.

120122021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252357215 (or 252357213 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120122021012 its reverse (210120221021), we get a palindrome (330242242033).

Subtracting 120122021012 from its reverse (210120221021), we obtain a square (89998200009 = 2999972).

The spelling of 120122021012 in words is "one hundred twenty billion, one hundred twenty-two million, twenty-one thousand, twelve".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 252357187 504714374 1009428748 1766500309 3533000618 4290072179 7066001236 8580144358 17160288716 30030505253 60061010506 120122021012