422442312121 has 4 divisors (see below), whose sum is σ = 422467858512. Its totient is φ = 422416765732.

The previous prime is 422442312109. The next prime is 422442312167. The reversal of 422442312121 is 121213244224.

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 422442312121 - 2²¹ = 422440214969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422442312121.

It is not an unprimeable number, because it can be changed into a prime (422442312521) 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, 12748375 + ... + 12781468.

It is an arithmetic number, because the mean of its divisors is an integer number (105616964628).

Almost surely, 2^422442312121 is an apocalyptic number.

It is an amenable number.

422442312121 is a deficient number, since it is larger than the sum of its proper divisors (25546391).

422442312121 is a wasteful number, since it uses less digits than its factorization.

422442312121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25546390.

The product of its digits is 6144, while the sum is 28.

Adding to 422442312121 its reverse (121213244224), we get a palindrome (543655556345).

The spelling of 422442312121 in words is "four hundred twenty-two billion, four hundred forty-two million, three hundred twelve thousand, one hundred twenty-one".