220312111110 has 64 divisors (see below), whose sum is σ = 650768090112. Its totient is φ = 46483433856.

The previous prime is 220312111091. The next prime is 220312111157. The reversal of 220312111110 is 11111213022.

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 220312111110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40347474 + ... + 40352933.

It is an arithmetic number, because the mean of its divisors is an integer number (10168251408).

Almost surely, 2^220312111110 is an apocalyptic number.

220312111110 is an abundant number, since it is smaller than the sum of its proper divisors (430455979002).

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

220312111110 is a wasteful number, since it uses less digits than its factorization.

220312111110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80700437.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 220312111110 its reverse (11111213022), we get a palindrome (231423324132).

The spelling of 220312111110 in words is "two hundred twenty billion, three hundred twelve million, one hundred eleven thousand, one hundred ten".