22252189 has 2 divisors, whose sum is σ = 22252190. Its totient is φ = 22252188.

The previous prime is 22252187. The next prime is 22252213. The reversal of 22252189 is 98125222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14175225 + 8076964 = 3765^2 + 2842^2 .

It is a cyclic number.

It is not a de Polignac number, because 22252189 - 2¹ = 22252187 is a prime.

Together with 22252187, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22252189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22252183) 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 as a sum of consecutive naturals, namely, 11126094 + 11126095.

It is an arithmetic number, because the mean of its divisors is an integer number (11126095).

Almost surely, 2^22252189 is an apocalyptic number.

It is an amenable number.

22252189 is a deficient number, since it is larger than the sum of its proper divisors (1).

22252189 is an equidigital number, since it uses as much as digits as its factorization.

22252189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 31.

The square root of 22252189 is about 4717.2225938575. Note that the first 3 decimals coincide. The cubic root of 22252189 is about 281.2705398003.

The spelling of 22252189 in words is "twenty-two million, two hundred fifty-two thousand, one hundred eighty-nine".