422120024321 has 4 divisors (see below), whose sum is σ = 422634178644. Its totient is φ = 421605870000.

The previous prime is 422120024299. The next prime is 422120024327. The reversal of 422120024321 is 123420021224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 224615332096 + 197504692225 = 473936^2 + 444415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422120024321 is a prime.

It is a super-2 number, since 2×422120024321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422120024327) 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, 257075930 + ... + 257077571.

It is an arithmetic number, because the mean of its divisors is an integer number (105658544661).

Almost surely, 2^422120024321 is an apocalyptic number.

It is an amenable number.

422120024321 is a deficient number, since it is larger than the sum of its proper divisors (514154323).

422120024321 is an equidigital number, since it uses as much as digits as its factorization.

422120024321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514154322.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 422120024321 its reverse (123420021224), we get a palindrome (545540045545).

The spelling of 422120024321 in words is "four hundred twenty-two billion, one hundred twenty million, twenty-four thousand, three hundred twenty-one".