220621082 has 32 divisors (see below), whose sum is σ = 371577024. Its totient is φ = 97372800.

The previous prime is 220621057. The next prime is 220621091. The reversal of 220621082 is 280126022.

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, 249413 + ... + 250295.

It is an arithmetic number, because the mean of its divisors is an integer number (11611782).

Almost surely, 2^220621082 is an apocalyptic number.

220621082 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220621082 is a deficient number, since it is larger than the sum of its proper divisors (150955942).

220621082 is a wasteful number, since it uses less digits than its factorization.

220621082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 220621082 is about 14853.3188883832. The cubic root of 220621082 is about 604.2486239437.

The spelling of 220621082 in words is "two hundred twenty million, six hundred twenty-one thousand, eighty-two".