11221167545717 has 2 divisors, whose sum is σ = 11221167545718. Its totient is φ = 11221167545716.

The previous prime is 11221167545689. The next prime is 11221167545719. The reversal of 11221167545717 is 71754576112211.

It is a happy number.

11221167545717 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10710637289521 + 510530256196 = 3272711^2 + 714514^2 .

It is a cyclic number.

It is not a de Polignac number, because 11221167545717 - 2⁸ = 11221167545461 is a prime.

Together with 11221167545719, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11221167545719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610583772858 + 5610583772859.

It is an arithmetic number, because the mean of its divisors is an integer number (5610583772859).

Almost surely, 2^{11221167545717} is an apocalyptic number.

It is an amenable number.

11221167545717 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221167545717 is an equidigital number, since it uses as much as digits as its factorization.

11221167545717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 823200, while the sum is 50.

The spelling of 11221167545717 in words is "eleven trillion, two hundred twenty-one billion, one hundred sixty-seven million, five hundred forty-five thousand, seven hundred seventeen".