220668822 has 24 divisors (see below), whose sum is σ = 521581320. Its totient is φ = 66869280.

The previous prime is 220668817. The next prime is 220668871. The reversal of 220668822 is 228866022.

220668822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 557047 + ... + 557442.

It is an arithmetic number, because the mean of its divisors is an integer number (21732555).

Almost surely, 2^220668822 is an apocalyptic number.

220668822 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220668822 is an abundant number, since it is smaller than the sum of its proper divisors (300912498).

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

220668822 is a wasteful number, since it uses less digits than its factorization.

220668822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114508 (or 1114505 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 220668822 is about 14854.9258496971. The cubic root of 220668822 is about 604.2922050747.

The spelling of 220668822 in words is "two hundred twenty million, six hundred sixty-eight thousand, eight hundred twenty-two".