212112012102111 has 12 divisors (see below), whose sum is σ = 334237109979240. Its totient is φ = 128552734607280.

The previous prime is 212112012102101. The next prime is 212112012102131. The reversal of 212112012102111 is 111201210211212.

It is a happy number.

212112012102111 is a `hidden beast` number, since 2 + 121 + 120 + 1 + 210 + 211 + 1 = 666.

It is not a de Polignac number, because 212112012102111 - 2¹⁸ = 212112011839967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212112012102101) 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 11 ways as a sum of consecutive naturals, for example, 1071272788296 + ... + 1071272788493.

It is an arithmetic number, because the mean of its divisors is an integer number (27853092498270).

Almost surely, 2^{212112012102111} is an apocalyptic number.

212112012102111 is a deficient number, since it is larger than the sum of its proper divisors (122125097877129).

212112012102111 is a wasteful number, since it uses less digits than its factorization.

212112012102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142545576806 (or 2142545576803 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 212112012102111 its reverse (111201210211212), we get a palindrome (323313222313323).

The spelling of 212112012102111 in words is "two hundred twelve trillion, one hundred twelve billion, twelve million, one hundred two thousand, one hundred eleven".