212310012 has 24 divisors (see below), whose sum is σ = 503512912. Its totient is φ = 69609600.

The previous prime is 212309947. The next prime is 212310017. The reversal of 212310012 is 210013212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 212310012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212310017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144289 + ... + 145752.

Almost surely, 2^212310012 is an apocalyptic number.

It is an amenable number.

212310012 is an abundant number, since it is smaller than the sum of its proper divisors (291202900).

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

212310012 is a wasteful number, since it uses less digits than its factorization.

212310012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290109 (or 290107 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 212310012 is about 14570.8617452778. The cubic root of 212310012 is about 596.5637017726.

Adding to 212310012 its reverse (210013212), we get a palindrome (422323224).

The spelling of 212310012 in words is "two hundred twelve million, three hundred ten thousand, twelve".