22124187 has 36 divisors (see below), whose sum is σ = 34421920. Its totient is φ = 13680576.

The previous prime is 22124171. The next prime is 22124203. The reversal of 22124187 is 78142122.

It is an interprime number because it is at equal distance from previous prime (22124171) and next prime (22124203).

It is not a de Polignac number, because 22124187 - 2⁴ = 22124171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22124187.

It is not an unprimeable number, because it can be changed into a prime (22124107) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 280014 + ... + 280092.

Almost surely, 2^22124187 is an apocalyptic number.

22124187 is a deficient number, since it is larger than the sum of its proper divisors (12297733).

22124187 is a wasteful number, since it uses less digits than its factorization.

22124187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 148 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 22124187 is about 4703.6355088378. The cubic root of 22124187 is about 280.7301817676.

The spelling of 22124187 in words is "twenty-two million, one hundred twenty-four thousand, one hundred eighty-seven".