22212824 has 32 divisors (see below), whose sum is σ = 44074800. Its totient is φ = 10465920.

The previous prime is 22212823. The next prime is 22212859. The reversal of 22212824 is 42821222.

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 22212824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47954 + ... + 48414.

Almost surely, 2^22212824 is an apocalyptic number.

It is an amenable number.

22212824 is a deficient number, since it is larger than the sum of its proper divisors (21861976).

22212824 is a wasteful number, since it uses less digits than its factorization.

22212824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803 (or 799 counting only the distinct ones).

The product of its digits is 1024, while the sum is 23.

The square root of 22212824 is about 4713.0482704933. The cubic root of 22212824 is about 281.1045823405.

The spelling of 22212824 in words is "twenty-two million, two hundred twelve thousand, eight hundred twenty-four".