22217559149 has 2 divisors, whose sum is σ = 22217559150. Its totient is φ = 22217559148.

The previous prime is 22217559139. The next prime is 22217559173. The reversal of 22217559149 is 94195571222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12654675049 + 9562884100 = 112493^2 + 97790^2 .

It is a cyclic number.

It is not a de Polignac number, because 22217559149 - 2¹² = 22217555053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22217559139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11108779574 + 11108779575.

It is an arithmetic number, because the mean of its divisors is an integer number (11108779575).

Almost surely, 2^22217559149 is an apocalyptic number.

It is an amenable number.

22217559149 is a deficient number, since it is larger than the sum of its proper divisors (1).

22217559149 is an equidigital number, since it uses as much as digits as its factorization.

22217559149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 47.

The spelling of 22217559149 in words is "twenty-two billion, two hundred seventeen million, five hundred fifty-nine thousand, one hundred forty-nine".