210312012 has 24 divisors (see below), whose sum is σ = 495233200. Its totient is φ = 69460416.

The previous prime is 210311999. The next prime is 210312017. The reversal of 210312012 is 210213012.

It is a super-2 number, since 2×210312012² = 88462284782976288, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (210312017) 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, 79087 + ... + 81702.

Almost surely, 2^210312012 is an apocalyptic number.

It is an amenable number.

210312012 is an abundant number, since it is smaller than the sum of its proper divisors (284921188).

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

210312012 is a wasteful number, since it uses less digits than its factorization.

210312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160905 (or 160903 counting only the distinct ones).

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

The square root of 210312012 is about 14502.1381871778. The cubic root of 210312012 is about 594.6864265846.

Adding to 210312012 its reverse (210213012), we get a palindrome (420525024).

The spelling of 210312012 in words is "two hundred ten million, three hundred twelve thousand, twelve".