210112122112 has 72 divisors (see below), whose sum is σ = 422353387904. Its totient is φ = 104318337024.

The previous prime is 210112122107. The next prime is 210112122113. The reversal of 210112122112 is 211221211012.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210112122113) 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, 88170073 + ... + 88172455.

Almost surely, 2^210112122112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210112122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211176693952).

210112122112 is an abundant number, since it is smaller than the sum of its proper divisors (212241265792).

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

210112122112 is a wasteful number, since it uses less digits than its factorization.

210112122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4675 (or 4661 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210112122112 its reverse (211221211012), we get a palindrome (421333333124).

The spelling of 210112122112 in words is "two hundred ten billion, one hundred twelve million, one hundred twenty-two thousand, one hundred twelve".