12455219102171 has 2 divisors, whose sum is σ = 12455219102172. Its totient is φ = 12455219102170.

The previous prime is 12455219102071. The next prime is 12455219102189. The reversal of 12455219102171 is 17120191255421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12455219102171 - 2³⁴ = 12438039232987 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12455219102071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6227609551085 + 6227609551086.

It is an arithmetic number, because the mean of its divisors is an integer number (6227609551086).

Almost surely, 2^{12455219102171} is an apocalyptic number.

12455219102171 is a deficient number, since it is larger than the sum of its proper divisors (1).

12455219102171 is an equidigital number, since it uses as much as digits as its factorization.

12455219102171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 41.

The spelling of 12455219102171 in words is "twelve trillion, four hundred fifty-five billion, two hundred nineteen million, one hundred two thousand, one hundred seventy-one".