212012111112 has 64 divisors (see below), whose sum is σ = 537625589760. Its totient is φ = 69658478400.

The previous prime is 212012111081. The next prime is 212012111177. The reversal of 212012111112 is 211111210212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212012111091 and 212012111100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8410287 + ... + 8435457.

It is an arithmetic number, because the mean of its divisors is an integer number (8400399840).

Almost surely, 2^212012111112 is an apocalyptic number.

It is an amenable number.

212012111112 is an abundant number, since it is smaller than the sum of its proper divisors (325613478648).

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

212012111112 is a wasteful number, since it uses less digits than its factorization.

212012111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30194 (or 30190 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212012111112 its reverse (211111210212), we get a palindrome (423123321324).

The spelling of 212012111112 in words is "two hundred twelve billion, twelve million, one hundred eleven thousand, one hundred twelve".