12422120445426 has 32 divisors (see below), whose sum is σ = 26308125088128. Its totient is φ = 3896771639040.

The previous prime is 12422120445379. The next prime is 12422120445431. The reversal of 12422120445426 is 62454402122421.

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 15 ways as a sum of consecutive naturals, for example, 4592545 + ... + 6777588.

It is an arithmetic number, because the mean of its divisors is an integer number (822128909004).

Almost surely, 2^{12422120445426} is an apocalyptic number.

12422120445426 is an abundant number, since it is smaller than the sum of its proper divisors (13886004642702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12422120445426 is a wasteful number, since it uses less digits than its factorization.

12422120445426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11380866.

The product of its (nonzero) digits is 245760, while the sum is 39.

Adding to 12422120445426 its reverse (62454402122421), we get a palindrome (74876522567847).

The spelling of 12422120445426 in words is "twelve trillion, four hundred twenty-two billion, one hundred twenty million, four hundred forty-five thousand, four hundred twenty-six".