220661022 has 32 divisors (see below), whose sum is σ = 465563520. Its totient is φ = 69530400.

The previous prime is 220661009. The next prime is 220661059. The reversal of 220661022 is 220166022.

It is a self number, because there is not a number n which added to its sum of digits gives 220661022.

It is a congruent number.

It is an unprimeable number.

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, 57772 + ... + 61472.

It is an arithmetic number, because the mean of its divisors is an integer number (14548860).

Almost surely, 2^220661022 is an apocalyptic number.

220661022 is an abundant number, since it is smaller than the sum of its proper divisors (244902498).

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

220661022 is a wasteful number, since it uses less digits than its factorization.

220661022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 220661022 is about 14854.6633082006. The cubic root of 220661022 is about 604.2850850011.

The spelling of 220661022 in words is "two hundred twenty million, six hundred sixty-one thousand, twenty-two".