210221102120112 has 120 divisors (see below), whose sum is σ = 623027571701184. Its totient is φ = 65941874030592.

The previous prime is 210221102120041. The next prime is 210221102120123. The reversal of 210221102120112 is 211021201122012.

210221102120112 is a `hidden beast` number, since 210 + 22 + 110 + 212 + 0 + 112 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10003258 + ... + 22814630.

Almost surely, 2^{210221102120112} 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 210221102120112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311513785850592).

210221102120112 is an abundant number, since it is smaller than the sum of its proper divisors (412806469581072).

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

210221102120112 is a wasteful number, since it uses less digits than its factorization.

210221102120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12818107 (or 12818098 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 210221102120112 its reverse (211021201122012), we get a palindrome (421242303242124).

The spelling of 210221102120112 in words is "two hundred ten trillion, two hundred twenty-one billion, one hundred two million, one hundred twenty thousand, one hundred twelve".