231222021231223 has 8 divisors (see below), whose sum is σ = 252243015860880. Its totient is φ = 210201161748480.

The previous prime is 231222021231169. The next prime is 231222021231247. The reversal of 231222021231223 is 322132120222132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231222021231223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231222021231191 and 231222021231200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231222021231023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30192778 + ... + 37068151.

It is an arithmetic number, because the mean of its divisors is an integer number (31530376982610).

Almost surely, 2^{231222021231223} is an apocalyptic number.

231222021231223 is a deficient number, since it is larger than the sum of its proper divisors (21020994629657).

231222021231223 is a wasteful number, since it uses less digits than its factorization.

231222021231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67573457.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 231222021231223 its reverse (322132120222132), we get a palindrome (553354141453355).

The spelling of 231222021231223 in words is "two hundred thirty-one trillion, two hundred twenty-two billion, twenty-one million, two hundred thirty-one thousand, two hundred twenty-three".