220022889 has 4 divisors (see below), whose sum is σ = 293363856. Its totient is φ = 146681924.

The previous prime is 220022879. The next prime is 220022893. The reversal of 220022889 is 988220022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220022889 - 2⁸ = 220022633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220022819) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 36670479 + ... + 36670484.

It is an arithmetic number, because the mean of its divisors is an integer number (73340964).

Almost surely, 2^220022889 is an apocalyptic number.

It is an amenable number.

220022889 is a deficient number, since it is larger than the sum of its proper divisors (73340967).

220022889 is an equidigital number, since it uses as much as digits as its factorization.

220022889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73340966.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 220022889 is about 14833.1685421558. The cubic root of 220022889 is about 603.7020087963.

The spelling of 220022889 in words is "two hundred twenty million, twenty-two thousand, eight hundred eighty-nine".