22189109 has 4 divisors (see below), whose sum is σ = 22223340. Its totient is φ = 22154880.

The previous prime is 22189103. The next prime is 22189117. The reversal of 22189109 is 90198122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8720209 + 13468900 = 2953^2 + 3670^2 .

It is a cyclic number.

It is not a de Polignac number, because 22189109 - 2¹² = 22185013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22189103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16124 + ... + 17445.

It is an arithmetic number, because the mean of its divisors is an integer number (5555835).

Almost surely, 2^22189109 is an apocalyptic number.

It is an amenable number.

22189109 is a deficient number, since it is larger than the sum of its proper divisors (34231).

22189109 is an equidigital number, since it uses as much as digits as its factorization.

22189109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34230.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 22189109 is about 4710.5317109643. The cubic root of 22189109 is about 281.0045084825.

The spelling of 22189109 in words is "twenty-two million, one hundred eighty-nine thousand, one hundred nine".