22169990389 has 2 divisors, whose sum is σ = 22169990390. Its totient is φ = 22169990388.

The previous prime is 22169990371. The next prime is 22169990399. The reversal of 22169990389 is 98309996122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20202358225 + 1967632164 = 142135^2 + 44358^2 .

It is a cyclic number.

It is not a de Polignac number, because 22169990389 - 2⁵ = 22169990357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22169990369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11084995194 + 11084995195.

It is an arithmetic number, because the mean of its divisors is an integer number (11084995195).

Almost surely, 2^22169990389 is an apocalyptic number.

It is an amenable number.

22169990389 is a deficient number, since it is larger than the sum of its proper divisors (1).

22169990389 is an equidigital number, since it uses as much as digits as its factorization.

22169990389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3779136, while the sum is 58.

The spelling of 22169990389 in words is "twenty-two billion, one hundred sixty-nine million, nine hundred ninety thousand, three hundred eighty-nine".