12442421203124 has 24 divisors (see below), whose sum is σ = 24143118345696. Its totient is φ = 5562930492000.

The previous prime is 12442421203021. The next prime is 12442421203151. The reversal of 12442421203124 is 42130212424421.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2317885022 + ... + 2317890389.

It is an arithmetic number, because the mean of its divisors is an integer number (1005963264404).

Almost surely, 2^{12442421203124} is an apocalyptic number.

It is an amenable number.

12442421203124 is a deficient number, since it is larger than the sum of its proper divisors (11700697142572).

12442421203124 is a wasteful number, since it uses less digits than its factorization.

12442421203124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4635775487 (or 4635775485 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 12442421203124 its reverse (42130212424421), we get a palindrome (54572633627545).

The spelling of 12442421203124 in words is "twelve trillion, four hundred forty-two billion, four hundred twenty-one million, two hundred three thousand, one hundred twenty-four".