220997082 has 16 divisors (see below), whose sum is σ = 442206432. Its totient is φ = 73630320.

The previous prime is 220997071. The next prime is 220997129. The reversal of 220997082 is 280799022.

220997082 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 220997082.

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, 6828 + ... + 22104.

It is an arithmetic number, because the mean of its divisors is an integer number (27637902).

Almost surely, 2^220997082 is an apocalyptic number.

220997082 is an abundant number, since it is smaller than the sum of its proper divisors (221209350).

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

220997082 is a wasteful number, since it uses less digits than its factorization.

220997082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17693.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 220997082 is about 14865.9706040339. The cubic root of 220997082 is about 604.5916986448.

The spelling of 220997082 in words is "two hundred twenty million, nine hundred ninety-seven thousand, eighty-two".