221112120100110 has 32 divisors (see below), whose sum is σ = 530681520035232. Its totient is φ = 58961850716160.

The previous prime is 221112120100063. The next prime is 221112120100171. The reversal of 221112120100110 is 11001021211122.

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 221112120100110.

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, 85029651 + ... + 87591470.

It is an arithmetic number, because the mean of its divisors is an integer number (16583797501101).

Almost surely, 2^{221112120100110} is an apocalyptic number.

221112120100110 is an abundant number, since it is smaller than the sum of its proper divisors (309569399935122).

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

221112120100110 is a wasteful number, since it uses less digits than its factorization.

221112120100110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172663828.

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

Adding to 221112120100110 its reverse (11001021211122), we get a palindrome (232113141311232).

The spelling of 221112120100110 in words is "two hundred twenty-one trillion, one hundred twelve billion, one hundred twenty million, one hundred thousand, one hundred ten".