210112212 has 12 divisors (see below), whose sum is σ = 490261856. Its totient is φ = 70037400.

The previous prime is 210112211. The next prime is 210112213. The reversal of 210112212 is 212211012.

It is an interprime number because it is at equal distance from previous prime (210112211) and next prime (210112213).

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

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 17509351 = 210112212 / (2 + 1 + 0 + 1 + 1 + 2 + 2 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210112211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8754664 + ... + 8754687.

Almost surely, 2^210112212 is an apocalyptic number.

It is an amenable number.

210112212 is an abundant number, since it is smaller than the sum of its proper divisors (280149644).

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

210112212 is a wasteful number, since it uses less digits than its factorization.

210112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17509358 (or 17509356 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 210112212 is about 14495.2479109534. The cubic root of 210112212 is about 594.4980461663.

Adding to 210112212 its reverse (212211012), we get a palindrome (422323224).

The spelling of 210112212 in words is "two hundred ten million, one hundred twelve thousand, two hundred twelve".