422125321 has 4 divisors (see below), whose sum is σ = 423133200. Its totient is φ = 421117444.

The previous prime is 422125289. The next prime is 422125331. The reversal of 422125321 is 123521224.

It is a happy number.

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 422125321 - 2⁵ = 422125289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422125292 and 422125301.

It is not an unprimeable number, because it can be changed into a prime (422125331) 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, 503311 + ... + 504148.

It is an arithmetic number, because the mean of its divisors is an integer number (105783300).

Almost surely, 2^422125321 is an apocalyptic number.

It is an amenable number.

422125321 is a deficient number, since it is larger than the sum of its proper divisors (1007879).

422125321 is a wasteful number, since it uses less digits than its factorization.

422125321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007878.

The product of its digits is 960, while the sum is 22.

The square root of 422125321 is about 20545.6886231637. The cubic root of 422125321 is about 750.1483090410.

Adding to 422125321 its reverse (123521224), we get a palindrome (545646545).

The spelling of 422125321 in words is "four hundred twenty-two million, one hundred twenty-five thousand, three hundred twenty-one".