22285222 has 8 divisors (see below), whose sum is σ = 34243272. Its totient is φ = 10870800.

The previous prime is 22285213. The next prime is 22285259. The reversal of 22285222 is 22258222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22285222² = 993262239178568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135804 + ... + 135967.

It is an arithmetic number, because the mean of its divisors is an integer number (4280409).

Almost surely, 2^22285222 is an apocalyptic number.

22285222 is a deficient number, since it is larger than the sum of its proper divisors (11958050).

22285222 is a wasteful number, since it uses less digits than its factorization.

22285222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271814.

The product of its digits is 2560, while the sum is 25.

The square root of 22285222 is about 4720.7226141768. The cubic root of 22285222 is about 281.4096514473.

Subtracting from 22285222 its reverse (22258222), we obtain a cube (27000 = 30³).

The spelling of 22285222 in words is "twenty-two million, two hundred eighty-five thousand, two hundred twenty-two".