220102220 has 36 divisors (see below), whose sum is σ = 500512320. Its totient is φ = 81267264.

The previous prime is 220102189. The next prime is 220102231. The reversal of 220102220 is 22201022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29180 + ... + 35939.

It is an arithmetic number, because the mean of its divisors is an integer number (13903120).

Almost surely, 2^220102220 is an apocalyptic number.

220102220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220102220 is an abundant number, since it is smaller than the sum of its proper divisors (280410100).

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

220102220 is a wasteful number, since it uses less digits than its factorization.

220102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65154 (or 65139 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 220102220 is about 14835.8424095162. The cubic root of 220102220 is about 603.7745565957.

Adding to 220102220 its reverse (22201022), we get a palindrome (242303242).

The spelling of 220102220 in words is "two hundred twenty million, one hundred two thousand, two hundred twenty".