22212332 has 6 divisors (see below), whose sum is σ = 38871588. Its totient is φ = 11106164.

The previous prime is 22212329. The next prime is 22212343. The reversal of 22212332 is 23321222.

It is a self number, because there is not a number n which added to its sum of digits gives 22212332.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2776538 + ... + 2776545.

It is an arithmetic number, because the mean of its divisors is an integer number (6478598).

Almost surely, 2^22212332 is an apocalyptic number.

It is an amenable number.

22212332 is a deficient number, since it is larger than the sum of its proper divisors (16659256).

22212332 is a wasteful number, since it uses less digits than its factorization.

22212332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5553087 (or 5553085 counting only the distinct ones).

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

The square root of 22212332 is about 4712.9960746854. The cubic root of 22212332 is about 281.1025068957.

Adding to 22212332 its reverse (23321222), we get a palindrome (45533554).

The spelling of 22212332 in words is "twenty-two million, two hundred twelve thousand, three hundred thirty-two".