212112111011 has 16 divisors (see below), whose sum is σ = 214900436448. Its totient is φ = 209338272000.

The previous prime is 212112110971. The next prime is 212112111037. The reversal of 212112111011 is 110111211212.

It is a cyclic number.

It is not a de Polignac number, because 212112111011 - 2³⁴ = 194932241827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212112111041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74137721 + ... + 74140581.

It is an arithmetic number, because the mean of its divisors is an integer number (13431277278).

Almost surely, 2^212112111011 is an apocalyptic number.

212112111011 is a deficient number, since it is larger than the sum of its proper divisors (2788325437).

212112111011 is a wasteful number, since it uses less digits than its factorization.

212112111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5062.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 212112111011 its reverse (110111211212), we get a palindrome (322223322223).

The spelling of 212112111011 in words is "two hundred twelve billion, one hundred twelve million, one hundred eleven thousand, eleven".