12203222121917 has 2 divisors, whose sum is σ = 12203222121918. Its totient is φ = 12203222121916.

The previous prime is 12203222121913. The next prime is 12203222121971. The reversal of 12203222121917 is 71912122230221.

It is a happy number.

Together with next prime (12203222121971) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12182515199716 + 20706922201 = 3490346^2 + 143899^2 .

It is a cyclic number.

It is not a de Polignac number, because 12203222121917 - 2² = 12203222121913 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12203222121911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6101611060958 + 6101611060959.

It is an arithmetic number, because the mean of its divisors is an integer number (6101611060959).

Almost surely, 2^{12203222121917} is an apocalyptic number.

It is an amenable number.

12203222121917 is a deficient number, since it is larger than the sum of its proper divisors (1).

12203222121917 is an equidigital number, since it uses as much as digits as its factorization.

12203222121917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 12203222121917 in words is "twelve trillion, two hundred three billion, two hundred twenty-two million, one hundred twenty-one thousand, nine hundred seventeen".