22149939349 has 2 divisors, whose sum is σ = 22149939350. Its totient is φ = 22149939348.

The previous prime is 22149939283. The next prime is 22149939373. The reversal of 22149939349 is 94393994122.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21576672100 + 573267249 = 146890^2 + 23943^2 .

It is a cyclic number.

It is not a de Polignac number, because 22149939349 - 2⁷ = 22149939221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22149939349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22149939649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11074969674 + 11074969675.

It is an arithmetic number, because the mean of its divisors is an integer number (11074969675).

Almost surely, 2^22149939349 is an apocalyptic number.

It is an amenable number.

22149939349 is a deficient number, since it is larger than the sum of its proper divisors (1).

22149939349 is an equidigital number, since it uses as much as digits as its factorization.

22149939349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3779136, while the sum is 55.

The spelling of 22149939349 in words is "twenty-two billion, one hundred forty-nine million, nine hundred thirty-nine thousand, three hundred forty-nine".