22119989 has 2 divisors, whose sum is σ = 22119990. Its totient is φ = 22119988.

The previous prime is 22119973. The next prime is 22120031. The reversal of 22119989 is 98991122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17497489 + 4622500 = 4183^2 + 2150^2 .

It is a cyclic number.

It is not a de Polignac number, because 22119989 - 2⁴ = 22119973 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22119919) 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 as a sum of consecutive naturals, namely, 11059994 + 11059995.

It is an arithmetic number, because the mean of its divisors is an integer number (11059995).

Almost surely, 2^22119989 is an apocalyptic number.

It is an amenable number.

22119989 is a deficient number, since it is larger than the sum of its proper divisors (1).

22119989 is an equidigital number, since it uses as much as digits as its factorization.

22119989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 41.

The square root of 22119989 is about 4703.1892371028. The cubic root of 22119989 is about 280.7124247332.

The spelling of 22119989 in words is "twenty-two million, one hundred nineteen thousand, nine hundred eighty-nine".