220120210 has 32 divisors (see below), whose sum is σ = 401283072. Its totient is φ = 86929920.

The previous prime is 220120193. The next prime is 220120211. The reversal of 220120210 is 12021022.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (220120211) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 448065 + ... + 448555.

It is an arithmetic number, because the mean of its divisors is an integer number (12540096).

Almost surely, 2^220120210 is an apocalyptic number.

220120210 is a deficient number, since it is larger than the sum of its proper divisors (181162862).

220120210 is a wasteful number, since it uses less digits than its factorization.

220120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 220120210 is about 14836.4486990654. The cubic root of 220120210 is about 603.7910059351.

Adding to 220120210 its reverse (12021022), we get a palindrome (232141232).

The spelling of 220120210 in words is "two hundred twenty million, one hundred twenty thousand, two hundred ten".