212112012012 has 12 divisors (see below), whose sum is σ = 494928028056. Its totient is φ = 70704004000.

The previous prime is 212112011939. The next prime is 212112012029. The reversal of 212112012012 is 210210211212.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 212112011982 and 212112012000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8838000489 + ... + 8838000512.

It is an arithmetic number, because the mean of its divisors is an integer number (41244002338).

Almost surely, 2^212112012012 is an apocalyptic number.

It is an amenable number.

212112012012 is an abundant number, since it is smaller than the sum of its proper divisors (282816016044).

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

212112012012 is a wasteful number, since it uses less digits than its factorization.

212112012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17676001008 (or 17676001006 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212112012012 its reverse (210210211212), we get a palindrome (422322223224).

It can be divided in two parts, 2121 and 12012012, that multiplied together give a palindrome (25477477452).

The spelling of 212112012012 in words is "two hundred twelve billion, one hundred twelve million, twelve thousand, twelve".