12175222355557 has 2 divisors, whose sum is σ = 12175222355558. Its totient is φ = 12175222355556.

The previous prime is 12175222355449. The next prime is 12175222355587. The reversal of 12175222355557 is 75555322257121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8951908416676 + 3223313938881 = 2991974^2 + 1795359^2 .

It is a cyclic number.

It is not a de Polignac number, because 12175222355557 - 2¹⁵ = 12175222322789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12175222355587) 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, 6087611177778 + 6087611177779.

It is an arithmetic number, because the mean of its divisors is an integer number (6087611177779).

Almost surely, 2^{12175222355557} is an apocalyptic number.

It is an amenable number.

12175222355557 is a deficient number, since it is larger than the sum of its proper divisors (1).

12175222355557 is an equidigital number, since it uses as much as digits as its factorization.

12175222355557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7350000, while the sum is 52.

The spelling of 12175222355557 in words is "twelve trillion, one hundred seventy-five billion, two hundred twenty-two million, three hundred fifty-five thousand, five hundred fifty-seven".