220111290 has 64 divisors (see below), whose sum is σ = 670821120. Its totient is φ = 50310720.

The previous prime is 220111277. The next prime is 220111319. The reversal of 220111290 is 92111022.

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 31 ways as a sum of consecutive naturals, for example, 56341 + ... + 60120.

It is an arithmetic number, because the mean of its divisors is an integer number (10481580).

Almost surely, 2^220111290 is an apocalyptic number.

220111290 is an abundant number, since it is smaller than the sum of its proper divisors (450709830).

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

220111290 is a wasteful number, since it uses less digits than its factorization.

220111290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116484 (or 116478 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 220111290 is about 14836.1480849983. The cubic root of 220111290 is about 603.7828499544.

The spelling of 220111290 in words is "two hundred twenty million, one hundred eleven thousand, two hundred ninety".