220668900 has 72 divisors (see below), whose sum is σ = 666249024. Its totient is φ = 56284800.

The previous prime is 220668871. The next prime is 220668913. The reversal of 220668900 is 9866022.

220668900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9091 + ... + 22890.

Almost surely, 2^220668900 is an apocalyptic number.

220668900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220668900 is an abundant number, since it is smaller than the sum of its proper divisors (445580124).

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

220668900 is a wasteful number, since it uses less digits than its factorization.

220668900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32021 (or 32014 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 220668900 is about 14854.9284750887. The cubic root of 220668900 is about 604.2922762746.

The spelling of 220668900 in words is "two hundred twenty million, six hundred sixty-eight thousand, nine hundred".