221120010121110 has 32 divisors (see below), whose sum is σ = 543029606254080. Its totient is φ = 57594049147488.

The previous prime is 221120010121103. The next prime is 221120010121123. The reversal of 221120010121110 is 11121010021122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 221120010121110.

It is a congruent number.

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, 85705428990 + ... + 85705431569.

It is an arithmetic number, because the mean of its divisors is an integer number (16969675195440).

Almost surely, 2^{221120010121110} is an apocalyptic number.

221120010121110 is an abundant number, since it is smaller than the sum of its proper divisors (321909596132970).

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

221120010121110 is a wasteful number, since it uses less digits than its factorization.

221120010121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171410860612.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 221120010121110 its reverse (11121010021122), we get a palindrome (232241020142232).

The spelling of 221120010121110 in words is "two hundred twenty-one trillion, one hundred twenty billion, ten million, one hundred twenty-one thousand, one hundred ten".