212312230012 has 24 divisors (see below), whose sum is σ = 372197306880. Its totient is φ = 105970303920.

The previous prime is 212312229979. The next prime is 212312230033. The reversal of 212312230012 is 210032213212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5570083 + ... + 5608069.

It is an arithmetic number, because the mean of its divisors is an integer number (15508221120).

Almost surely, 2^212312230012 is an apocalyptic number.

It is an amenable number.

212312230012 is a deficient number, since it is larger than the sum of its proper divisors (159885076868).

212312230012 is a wasteful number, since it uses less digits than its factorization.

212312230012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40401 (or 40399 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212312230012 its reverse (210032213212), we get a palindrome (422344443224).

The spelling of 212312230012 in words is "two hundred twelve billion, three hundred twelve million, two hundred thirty thousand, twelve".