12023222231 has 4 divisors (see below), whose sum is σ = 12024185112. Its totient is φ = 12022259352.

The previous prime is 12023222227. The next prime is 12023222251. The reversal of 12023222231 is 13222232021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13222232021 = 2083 ⋅6347687.

It is a cyclic number.

It is not a de Polignac number, because 12023222231 - 2² = 12023222227 is a prime.

It is a super-2 number, since 2×12023222231² (a number of 21 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 (12023222251) 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, 462461 + ... + 487766.

It is an arithmetic number, because the mean of its divisors is an integer number (3006046278).

Almost surely, 2^12023222231 is an apocalyptic number.

12023222231 is a deficient number, since it is larger than the sum of its proper divisors (962881).

12023222231 is an equidigital number, since it uses as much as digits as its factorization.

12023222231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962880.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12023222231 its reverse (13222232021), we get a palindrome (25245454252).

The spelling of 12023222231 in words is "twelve billion, twenty-three million, two hundred twenty-two thousand, two hundred thirty-one".