212012213212 has 48 divisors (see below), whose sum is σ = 385436620800. Its totient is φ = 101933254080.

The previous prime is 212012213177. The next prime is 212012213221. The reversal of 212012213212 is 212312210212.

It is a self number, because there is not a number n which added to its sum of digits gives 212012213212.

It is a congruent number.

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, 12589614 + ... + 12606442.

It is an arithmetic number, because the mean of its divisors is an integer number (8029929600).

Almost surely, 2^212012213212 is an apocalyptic number.

It is an amenable number.

212012213212 is a deficient number, since it is larger than the sum of its proper divisors (173424407588).

212012213212 is a wasteful number, since it uses less digits than its factorization.

212012213212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17506 (or 17504 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 212012213212 its reverse (212312210212), we get a palindrome (424324423424).

The spelling of 212012213212 in words is "two hundred twelve billion, twelve million, two hundred thirteen thousand, two hundred twelve".