212013312012 has 36 divisors (see below), whose sum is σ = 536014697400. Its totient is φ = 70658951232.

The previous prime is 212013311987. The next prime is 212013312067. The reversal of 212013312012 is 210213310212.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 292878 + ... + 714005.

It is an arithmetic number, because the mean of its divisors is an integer number (14889297150).

Almost surely, 2^212013312012 is an apocalyptic number.

It is an amenable number.

212013312012 is an abundant number, since it is smaller than the sum of its proper divisors (324001385388).

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

212013312012 is a wasteful number, since it uses less digits than its factorization.

212013312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012742 (or 1012737 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212013312012 its reverse (210213310212), we get a palindrome (422226622224).

The spelling of 212013312012 in words is "two hundred twelve billion, thirteen million, three hundred twelve thousand, twelve".