12422444422421 has 4 divisors (see below), whose sum is σ = 13551757551744. Its totient is φ = 11293131293100.

The previous prime is 12422444422417. The next prime is 12422444422457.

12422444422421 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12422444422421 - 2² = 12422444422417 is a prime.

It is a super-2 number, since 2×12422444422421² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12422444422481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564656564645 + ... + 564656564666.

It is an arithmetic number, because the mean of its divisors is an integer number (3387939387936).

Almost surely, 2^{12422444422421} is an apocalyptic number.

12422444422421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12422444422421 is a deficient number, since it is larger than the sum of its proper divisors (1129313129323).

12422444422421 is a wasteful number, since it uses less digits than its factorization.

12422444422421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129313129322.

The product of its digits is 262144, while the sum is 38.

It can be divided in two parts, 1242244 and 4422421, that added together give a palindrome (5664665).

The spelling of 12422444422421 in words is "twelve trillion, four hundred twenty-two billion, four hundred forty-four million, four hundred twenty-two thousand, four hundred twenty-one".