22126085549 has 2 divisors, whose sum is σ = 22126085550. Its totient is φ = 22126085548.

The previous prime is 22126085479. The next prime is 22126085557. The reversal of 22126085549 is 94558062122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14347727524 + 7778358025 = 119782^2 + 88195^2 .

It is a cyclic number.

It is not a de Polignac number, because 22126085549 - 2²⁸ = 21857650093 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22126085749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11063042774 + 11063042775.

It is an arithmetic number, because the mean of its divisors is an integer number (11063042775).

Almost surely, 2^22126085549 is an apocalyptic number.

It is an amenable number.

22126085549 is a deficient number, since it is larger than the sum of its proper divisors (1).

22126085549 is an equidigital number, since it uses as much as digits as its factorization.

22126085549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 22126085549 in words is "twenty-two billion, one hundred twenty-six million, eighty-five thousand, five hundred forty-nine".