12211210033171 has 2 divisors, whose sum is σ = 12211210033172. Its totient is φ = 12211210033170.

The previous prime is 12211210033049. The next prime is 12211210033207. The reversal of 12211210033171 is 17133001211221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12211210033171 is a prime.

It is a super-2 number, since 2×12211210033171² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12211210037171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105605016585 + 6105605016586.

It is an arithmetic number, because the mean of its divisors is an integer number (6105605016586).

Almost surely, 2^{12211210033171} is an apocalyptic number.

12211210033171 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211210033171 is an equidigital number, since it uses as much as digits as its factorization.

12211210033171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

Adding to 12211210033171 its reverse (17133001211221), we get a palindrome (29344211244392).

The spelling of 12211210033171 in words is "twelve trillion, two hundred eleven billion, two hundred ten million, thirty-three thousand, one hundred seventy-one".