210013220 has 24 divisors (see below), whose sum is σ = 455255808. Its totient is φ = 81295200.

The previous prime is 210013217. The next prime is 210013231. The reversal of 210013220 is 22310012.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168746 + ... + 169985.

It is an arithmetic number, because the mean of its divisors is an integer number (18968992).

Almost surely, 2^210013220 is an apocalyptic number.

210013220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210013220 is an abundant number, since it is smaller than the sum of its proper divisors (245242588).

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

210013220 is a wasteful number, since it uses less digits than its factorization.

210013220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338771 (or 338769 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 210013220 is about 14491.8328723457. The cubic root of 210013220 is about 594.4046678159.

Adding to 210013220 its reverse (22310012), we get a palindrome (232323232).

The spelling of 210013220 in words is "two hundred ten million, thirteen thousand, two hundred twenty".