22152188 has 12 divisors (see below), whose sum is σ = 38844120. Its totient is φ = 11053872.

The previous prime is 22152187. The next prime is 22152209. The reversal of 22152188 is 88125122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22152188.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22152187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3203 + ... + 7386.

It is an arithmetic number, because the mean of its divisors is an integer number (3237010).

Almost surely, 2^22152188 is an apocalyptic number.

It is an amenable number.

22152188 is a deficient number, since it is larger than the sum of its proper divisors (16691932).

22152188 is a wasteful number, since it uses less digits than its factorization.

22152188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11116 (or 11114 counting only the distinct ones).

The product of its digits is 2560, while the sum is 29.

The square root of 22152188 is about 4706.6110950449. The cubic root of 22152188 is about 280.8485652047.

The spelling of 22152188 in words is "twenty-two million, one hundred fifty-two thousand, one hundred eighty-eight".