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120212012101 = 711693126931
BaseRepresentation
bin110111111110100110…
…0011011110001000101
3102111021210002221102111
41233331030123301011
53432143233341401
6131120304341021
711453652146326
oct1577514336105
9374253087374
10120212012101
1146a88601a35
121b36a914771
13b44a0b900c
145b6557444d
1531d88d3e51
hex1bfd31bc45

120212012101 has 4 divisors (see below), whose sum is σ = 121905139104. Its totient is φ = 118518885100.

The previous prime is 120212012099. The next prime is 120212012183. The reversal of 120212012101 is 101210212021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101210212021 = 682914820649.

It is a cyclic number.

It is not a de Polignac number, because 120212012101 - 21 = 120212012099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120212013101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 846563395 + ... + 846563536.

It is an arithmetic number, because the mean of its divisors is an integer number (30476284776).

Almost surely, 2120212012101 is an apocalyptic number.

It is an amenable number.

120212012101 is a deficient number, since it is larger than the sum of its proper divisors (1693127003).

120212012101 is an equidigital number, since it uses as much as digits as its factorization.

120212012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693127002.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120212012101 its reverse (101210212021), we get a palindrome (221422224122).

The spelling of 120212012101 in words is "one hundred twenty billion, two hundred twelve million, twelve thousand, one hundred one".

Divisors: 1 71 1693126931 120212012101