422445322321231 has 4 divisors (see below), whose sum is σ = 460849442532264. Its totient is φ = 384041202110200.

The previous prime is 422445322321193. The next prime is 422445322321313. The reversal of 422445322321231 is 132123223544224.

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

It is a cyclic number.

It is not a de Polignac number, because 422445322321231 - 2⁹ = 422445322320719 is a prime.

It is a super-2 number, since 2×422445322321231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422445322321931) 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, 19202060105500 + ... + 19202060105521.

It is an arithmetic number, because the mean of its divisors is an integer number (115212360633066).

Almost surely, 2^{422445322321231} is an apocalyptic number.

422445322321231 is a deficient number, since it is larger than the sum of its proper divisors (38404120211033).

422445322321231 is a wasteful number, since it uses less digits than its factorization.

422445322321231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38404120211032.

The product of its digits is 552960, while the sum is 40.

Adding to 422445322321231 its reverse (132123223544224), we get a palindrome (554568545865455).

The spelling of 422445322321231 in words is "four hundred twenty-two trillion, four hundred forty-five billion, three hundred twenty-two million, three hundred twenty-one thousand, two hundred thirty-one".