210221310112 has 48 divisors (see below), whose sum is σ = 451591725312. Its totient is φ = 95535313920.

The previous prime is 210221310109. The next prime is 210221310137. The reversal of 210221310112 is 211013122012.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1708648 + ... + 1827544.

It is an arithmetic number, because the mean of its divisors is an integer number (9408160944).

Almost surely, 2^210221310112 is an apocalyptic number.

210221310112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210221310112 is an abundant number, since it is smaller than the sum of its proper divisors (241370415200).

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

210221310112 is a wasteful number, since it uses less digits than its factorization.

210221310112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123941 (or 123933 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 210221310112 its reverse (211013122012), we get a palindrome (421234432124).

The spelling of 210221310112 in words is "two hundred ten billion, two hundred twenty-one million, three hundred ten thousand, one hundred twelve".