12422444189 has 2 divisors, whose sum is σ = 12422444190. Its totient is φ = 12422444188.

The previous prime is 12422444183. The next prime is 12422444227. The reversal of 12422444189 is 98144422421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10274863225 + 2147580964 = 101365^2 + 46342^2 .

It is a cyclic number.

It is not a de Polignac number, because 12422444189 - 2⁸ = 12422443933 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12422444183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6211222094 + 6211222095.

It is an arithmetic number, because the mean of its divisors is an integer number (6211222095).

Almost surely, 2^12422444189 is an apocalyptic number.

It is an amenable number.

12422444189 is a deficient number, since it is larger than the sum of its proper divisors (1).

12422444189 is an equidigital number, since it uses as much as digits as its factorization.

12422444189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 147456, while the sum is 41.

The spelling of 12422444189 in words is "twelve billion, four hundred twenty-two million, four hundred forty-four thousand, one hundred eighty-nine".