22644111221317 has 2 divisors, whose sum is σ = 22644111221318. Its totient is φ = 22644111221316.

The previous prime is 22644111221287. The next prime is 22644111221321. The reversal of 22644111221317 is 71312211144622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18356503233601 + 4287607987716 = 4284449^2 + 2070654^2 .

It is a cyclic number.

It is not a de Polignac number, because 22644111221317 - 2¹¹ = 22644111219269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22644111221377) 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, 11322055610658 + 11322055610659.

It is an arithmetic number, because the mean of its divisors is an integer number (11322055610659).

Almost surely, 2^{22644111221317} is an apocalyptic number.

It is an amenable number.

22644111221317 is a deficient number, since it is larger than the sum of its proper divisors (1).

22644111221317 is an equidigital number, since it uses as much as digits as its factorization.

22644111221317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 37.

Adding to 22644111221317 its reverse (71312211144622), we get a palindrome (93956322365939).

The spelling of 22644111221317 in words is "twenty-two trillion, six hundred forty-four billion, one hundred eleven million, two hundred twenty-one thousand, three hundred seventeen".