212023312212 has 12 divisors (see below), whose sum is σ = 494721061856. Its totient is φ = 70674437400.

The previous prime is 212023312181. The next prime is 212023312247. The reversal of 212023312212 is 212213320212.

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

It is a congruent number.

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, 8834304664 + ... + 8834304687.

Almost surely, 2^212023312212 is an apocalyptic number.

It is an amenable number.

212023312212 is an abundant number, since it is smaller than the sum of its proper divisors (282697749644).

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

212023312212 is a wasteful number, since it uses less digits than its factorization.

212023312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17668609358 (or 17668609356 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212023312212 its reverse (212213320212), we get a palindrome (424236632424).

The spelling of 212023312212 in words is "two hundred twelve billion, twenty-three million, three hundred twelve thousand, two hundred twelve".