12444221344425 has 36 divisors (see below), whose sum is σ = 22278837951504. Its totient is φ = 6126385886400.

The previous prime is 12444221344361. The next prime is 12444221344439. The reversal of 12444221344425 is 52444312244421.

It is not a de Polignac number, because 12444221344425 - 2⁶ = 12444221344361 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 490883631 + ... + 490908980.

It is an arithmetic number, because the mean of its divisors is an integer number (618856609764).

Almost surely, 2^{12444221344425} is an apocalyptic number.

12444221344425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12444221344425 is a deficient number, since it is larger than the sum of its proper divisors (9834616607079).

12444221344425 is a wasteful number, since it uses less digits than its factorization.

12444221344425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981792650 (or 981792632 counting only the distinct ones).

The product of its digits is 983040, while the sum is 42.

Adding to 12444221344425 its reverse (52444312244421), we get a palindrome (64888533588846).

The spelling of 12444221344425 in words is "twelve trillion, four hundred forty-four billion, two hundred twenty-one million, three hundred forty-four thousand, four hundred twenty-five".