22821112 has 16 divisors (see below), whose sum is σ = 43183800. Its totient is φ = 11305440.

The previous prime is 22821107. The next prime is 22821131. The reversal of 22821112 is 21112822.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 22821112.

It is a congruent number.

It is an unprimeable number.

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, 12214 + ... + 13957.

Almost surely, 2^22821112 is an apocalyptic number.

It is an amenable number.

22821112 is a deficient number, since it is larger than the sum of its proper divisors (20362688).

22821112 is a wasteful number, since it uses less digits than its factorization.

22821112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26286 (or 26282 counting only the distinct ones).

The product of its digits is 128, while the sum is 19.

The square root of 22821112 is about 4777.1447539299. The cubic root of 22821112 is about 283.6474830030.

Adding to 22821112 its reverse (21112822), we get a palindrome (43933934).

The spelling of 22821112 in words is "twenty-two million, eight hundred twenty-one thousand, one hundred twelve".