422217173231 has 4 divisors (see below), whose sum is σ = 482533912272. Its totient is φ = 361900434192.

The previous prime is 422217173221. The next prime is 422217173233. The reversal of 422217173231 is 132371712224.

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 422217173231 - 2⁶ = 422217173167 is a prime.

It is a super-2 number, since 2×422217173231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422217173191 and 422217173200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422217173233) 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, 30158369510 + ... + 30158369523.

It is an arithmetic number, because the mean of its divisors is an integer number (120633478068).

Almost surely, 2^422217173231 is an apocalyptic number.

422217173231 is a deficient number, since it is larger than the sum of its proper divisors (60316739041).

422217173231 is an equidigital number, since it uses as much as digits as its factorization.

422217173231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60316739040.

The product of its digits is 28224, while the sum is 35.

Adding to 422217173231 its reverse (132371712224), we get a palindrome (554588885455).

The spelling of 422217173231 in words is "four hundred twenty-two billion, two hundred seventeen million, one hundred seventy-three thousand, two hundred thirty-one".