12455219102189 has 2 divisors, whose sum is σ = 12455219102190. Its totient is φ = 12455219102188.

The previous prime is 12455219102171. The next prime is 12455219102197. The reversal of 12455219102189 is 98120191255421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6918257146564 + 5536961955625 = 2630258^2 + 2353075^2 .

It is a cyclic number.

It is not a de Polignac number, because 12455219102189 - 2¹² = 12455219098093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12455219102489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6227609551094 + 6227609551095.

It is an arithmetic number, because the mean of its divisors is an integer number (6227609551095).

Almost surely, 2^{12455219102189} is an apocalyptic number.

It is an amenable number.

12455219102189 is a deficient number, since it is larger than the sum of its proper divisors (1).

12455219102189 is an equidigital number, since it uses as much as digits as its factorization.

12455219102189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 50.

The spelling of 12455219102189 in words is "twelve trillion, four hundred fifty-five billion, two hundred nineteen million, one hundred two thousand, one hundred eighty-nine".