212112212012 has 6 divisors (see below), whose sum is σ = 371196371028. Its totient is φ = 106056106004.

The previous prime is 212112211957. The next prime is 212112212023. The reversal of 212112212012 is 210212211212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26514026498 + ... + 26514026505.

It is an arithmetic number, because the mean of its divisors is an integer number (61866061838).

Almost surely, 2^212112212012 is an apocalyptic number.

It is an amenable number.

212112212012 is a deficient number, since it is larger than the sum of its proper divisors (159084159016).

212112212012 is a wasteful number, since it uses less digits than its factorization.

212112212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53028053007 (or 53028053005 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212112212012 its reverse (210212211212), we get a palindrome (422324423224).

The spelling of 212112212012 in words is "two hundred twelve billion, one hundred twelve million, two hundred twelve thousand, twelve".