22212528 has 40 divisors (see below), whose sum is σ = 61798128. Its totient is φ = 6834432.

The previous prime is 22212527. The next prime is 22212569. The reversal of 22212528 is 82521222.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 22212498 and 22212507.

It is not an unprimeable number, because it can be changed into a prime (22212527) 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, 17175 + ... + 18422.

Almost surely, 2^22212528 is an apocalyptic number.

It is an amenable number.

22212528 is an abundant number, since it is smaller than the sum of its proper divisors (39585600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22212528 is a wasteful number, since it uses less digits than its factorization.

22212528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35621 (or 35615 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 22212528 is about 4713.0168682066. The cubic root of 22212528 is about 281.1033337026.

The spelling of 22212528 in words is "twenty-two million, two hundred twelve thousand, five hundred twenty-eight".