422321321 has 4 divisors (see below), whose sum is σ = 426421632. Its totient is φ = 418221012.

The previous prime is 422321297. The next prime is 422321357. The reversal of 422321321 is 123123224.

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 422321321 - 2⁶ = 422321257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422321293 and 422321302.

It is not an unprimeable number, because it can be changed into a prime (422321381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2050001 + ... + 2050206.

It is an arithmetic number, because the mean of its divisors is an integer number (106605408).

Almost surely, 2^422321321 is an apocalyptic number.

It is an amenable number.

422321321 is a deficient number, since it is larger than the sum of its proper divisors (4100311).

422321321 is a wasteful number, since it uses less digits than its factorization.

422321321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4100310.

The product of its digits is 576, while the sum is 20.

The square root of 422321321 is about 20550.4579267714. The cubic root of 422321321 is about 750.2643933025.

Adding to 422321321 its reverse (123123224), we get a palindrome (545444545).

The spelling of 422321321 in words is "four hundred twenty-two million, three hundred twenty-one thousand, three hundred twenty-one".