22211998439 has 2 divisors, whose sum is σ = 22211998440. Its totient is φ = 22211998438.

The previous prime is 22211998433. The next prime is 22211998447. The reversal of 22211998439 is 93489911222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22211998439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22211998433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105999219 + 11105999220.

It is an arithmetic number, because the mean of its divisors is an integer number (11105999220).

Almost surely, 2^22211998439 is an apocalyptic number.

22211998439 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211998439 is an equidigital number, since it uses as much as digits as its factorization.

22211998439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 50.

The spelling of 22211998439 in words is "twenty-two billion, two hundred eleven million, nine hundred ninety-eight thousand, four hundred thirty-nine".