22245556788869 has 2 divisors, whose sum is σ = 22245556788870. Its totient is φ = 22245556788868.

The previous prime is 22245556788811. The next prime is 22245556788991. The reversal of 22245556788869 is 96888765554222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13956126924100 + 8289429864769 = 3735790^2 + 2879137^2 .

It is a cyclic number.

It is not a de Polignac number, because 22245556788869 - 2¹⁶ = 22245556723333 is a prime.

It is a super-2 number, since 2×22245556788869² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22245556788869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22245556788269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11122778394434 + 11122778394435.

It is an arithmetic number, because the mean of its divisors is an integer number (11122778394435).

Almost surely, 2^{22245556788869} is an apocalyptic number.

It is an amenable number.

22245556788869 is a deficient number, since it is larger than the sum of its proper divisors (1).

22245556788869 is an equidigital number, since it uses as much as digits as its factorization.

22245556788869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4644864000, while the sum is 77.

The spelling of 22245556788869 in words is "twenty-two trillion, two hundred forty-five billion, five hundred fifty-six million, seven hundred eighty-eight thousand, eight hundred sixty-nine".