12442224439 has 2 divisors, whose sum is σ = 12442224440. Its totient is φ = 12442224438.

The previous prime is 12442224437. The next prime is 12442224479. The reversal of 12442224439 is 93442224421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12442224439 - 2¹ = 12442224437 is a prime.

Together with 12442224437, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12442224398 and 12442224407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12442224437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6221112219 + 6221112220.

It is an arithmetic number, because the mean of its divisors is an integer number (6221112220).

Almost surely, 2^12442224439 is an apocalyptic number.

12442224439 is a deficient number, since it is larger than the sum of its proper divisors (1).

12442224439 is an equidigital number, since it uses as much as digits as its factorization.

12442224439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 37.

The spelling of 12442224439 in words is "twelve billion, four hundred forty-two million, two hundred twenty-four thousand, four hundred thirty-nine".