1166212452241 has 2 divisors, whose sum is σ = 1166212452242. Its totient is φ = 1166212452240.

The previous prime is 1166212452169. The next prime is 1166212452257. The reversal of 1166212452241 is 1422542126611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 627904099216 + 538308353025 = 792404^2 + 733695^2 .

It is a cyclic number.

It is not a de Polignac number, because 1166212452241 - 2²⁷ = 1166078234513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1166212452241.

It is not a weakly prime, because it can be changed into another prime (1166212452281) 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, 583106226120 + 583106226121.

It is an arithmetic number, because the mean of its divisors is an integer number (583106226121).

Almost surely, 2^{1166212452241} is an apocalyptic number.

It is an amenable number.

1166212452241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166212452241 is an equidigital number, since it uses as much as digits as its factorization.

1166212452241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 37.

Adding to 1166212452241 its reverse (1422542126611), we get a palindrome (2588754578852).

The spelling of 1166212452241 in words is "one trillion, one hundred sixty-six billion, two hundred twelve million, four hundred fifty-two thousand, two hundred forty-one".