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212212112110031 = 1161316262462161
BaseRepresentation
bin110000010000000101111011…
…100011110011000111001111
31000211101021112222001210021002
4300100011323203303013033
5210303340401200010111
62031200522022130515
762461550652451265
oct6020057343630717
91024337488053232
10212212112110031
1161687718a22940
121b974166b80a3b
139154693426037
143a5919a166435
1519801cd94c63b
hexc1017b8f31cf

212212112110031 has 8 divisors (see below), whose sum is σ = 235299271848528. Its totient is φ = 189757477296000.

The previous prime is 212212112110027. The next prime is 212212112110039. The reversal of 212212112110031 is 130011211212212.

212212112110031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212212112110031 - 22 = 212212112110027 is a prime.

It is a super-2 number, since 2×2122121121100312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212212112109985 and 212212112110012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212112110039) 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, 158131230410 + ... + 158131231751.

It is an arithmetic number, because the mean of its divisors is an integer number (29412408981066).

Almost surely, 2212212112110031 is an apocalyptic number.

212212112110031 is a deficient number, since it is larger than the sum of its proper divisors (23087159738497).

212212112110031 is a wasteful number, since it uses less digits than its factorization.

212212112110031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316262462233.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 212212112110031 its reverse (130011211212212), we get a palindrome (342223323322243).

The spelling of 212212112110031 in words is "two hundred twelve trillion, two hundred twelve billion, one hundred twelve million, one hundred ten thousand, thirty-one".

Divisors: 1 11 61 671 316262462161 3478887083771 19292010191821 212212112110031