22331222 has 8 divisors (see below), whose sum is σ = 34577472. Its totient is φ = 10805400.

The previous prime is 22331203. The next prime is 22331249. The reversal of 22331222 is 22213322.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22331222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180029 + ... + 180152.

It is an arithmetic number, because the mean of its divisors is an integer number (4322184).

Almost surely, 2^22331222 is an apocalyptic number.

22331222 is a deficient number, since it is larger than the sum of its proper divisors (12246250).

22331222 is a wasteful number, since it uses less digits than its factorization.

22331222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360214.

The product of its digits is 288, while the sum is 17.

The square root of 22331222 is about 4725.5922380163. The cubic root of 22331222 is about 281.6031421153.

Adding to 22331222 its reverse (22213322), we get a palindrome (44544544).

The spelling of 22331222 in words is "twenty-two million, three hundred thirty-one thousand, two hundred twenty-two".