12442443121022 has 16 divisors (see below), whose sum is σ = 18986641827120. Its totient is φ = 6113636332608.

The previous prime is 12442443120959. The next prime is 12442443121039. The reversal of 12442443121022 is 22012134424421.

It is a self number, because there is not a number n which added to its sum of digits gives 12442443121022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18116573 + ... + 18790824.

It is an arithmetic number, because the mean of its divisors is an integer number (1186665114195).

Almost surely, 2^{12442443121022} is an apocalyptic number.

12442443121022 is a deficient number, since it is larger than the sum of its proper divisors (6544198706098).

12442443121022 is a wasteful number, since it uses less digits than its factorization.

12442443121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36910315.

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

Adding to 12442443121022 its reverse (22012134424421), we get a palindrome (34454577545443).

The spelling of 12442443121022 in words is "twelve trillion, four hundred forty-two billion, four hundred forty-three million, one hundred twenty-one thousand, twenty-two".