12022222221917 has 2 divisors, whose sum is σ = 12022222221918. Its totient is φ = 12022222221916.

The previous prime is 12022222221899. The next prime is 12022222222051. The reversal of 12022222221917 is 71912222222021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9179966783716 + 2842255438201 = 3029846^2 + 1685899^2 .

It is a cyclic number.

It is not a de Polignac number, because 12022222221917 - 2²⁰ = 12022221173341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12022222221017) 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, 6011111110958 + 6011111110959.

It is an arithmetic number, because the mean of its divisors is an integer number (6011111110959).

Almost surely, 2^{12022222221917} is an apocalyptic number.

It is an amenable number.

12022222221917 is a deficient number, since it is larger than the sum of its proper divisors (1).

12022222221917 is an equidigital number, since it uses as much as digits as its factorization.

12022222221917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

Adding to 12022222221917 its reverse (71912222222021), we get a palindrome (83934444443938).

The spelling of 12022222221917 in words is "twelve trillion, twenty-two billion, two hundred twenty-two million, two hundred twenty-one thousand, nine hundred seventeen".