422641396322321 has 4 divisors (see below), whose sum is σ = 461063341442544. Its totient is φ = 384219451202100.

The previous prime is 422641396322311. The next prime is 422641396322339. The reversal of 422641396322321 is 123223693146224.

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 422641396322321 - 2²⁶ = 422641329213457 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 422641396322321.

It is not an unprimeable number, because it can be changed into a prime (422641396322311) 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, 19210972560095 + ... + 19210972560116.

It is an arithmetic number, because the mean of its divisors is an integer number (115265835360636).

Almost surely, 2^{422641396322321} is an apocalyptic number.

It is an amenable number.

422641396322321 is a deficient number, since it is larger than the sum of its proper divisors (38421945120223).

422641396322321 is a wasteful number, since it uses less digits than its factorization.

422641396322321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38421945120222.

The product of its digits is 4478976, while the sum is 50.

The spelling of 422641396322321 in words is "four hundred twenty-two trillion, six hundred forty-one billion, three hundred ninety-six million, three hundred twenty-two thousand, three hundred twenty-one".