222258887 has 4 divisors (see below), whose sum is σ = 222930696. Its totient is φ = 221587080.

The previous prime is 222258857. The next prime is 222258893. The reversal of 222258887 is 788852222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222258887 - 2⁶ = 222258823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222258847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335408 + ... + 336069.

It is an arithmetic number, because the mean of its divisors is an integer number (55732674).

Almost surely, 2^222258887 is an apocalyptic number.

222258887 is a deficient number, since it is larger than the sum of its proper divisors (671809).

222258887 is an equidigital number, since it uses as much as digits as its factorization.

222258887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671808.

The product of its digits is 286720, while the sum is 44.

The square root of 222258887 is about 14908.3495733096. The cubic root of 222258887 is about 605.7401746068.

The spelling of 222258887 in words is "two hundred twenty-two million, two hundred fifty-eight thousand, eight hundred eighty-seven".