210111220112 has 80 divisors (see below), whose sum is σ = 435592691712. Its totient is φ = 97835028480.

The previous prime is 210111220087. The next prime is 210111220127. The reversal of 210111220112 is 211022111012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13222412 + ... + 13238292.

Almost surely, 2^210111220112 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 210111220112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217796345856).

210111220112 is an abundant number, since it is smaller than the sum of its proper divisors (225481471600).

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

210111220112 is a wasteful number, since it uses less digits than its factorization.

210111220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16416 (or 16410 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210111220112 its reverse (211022111012), we get a palindrome (421133331124).

The spelling of 210111220112 in words is "two hundred ten billion, one hundred eleven million, two hundred twenty thousand, one hundred twelve".