12223231212331 has 4 divisors (see below), whose sum is σ = 12226347002952. Its totient is φ = 12220115421712.

The previous prime is 12223231212307. The next prime is 12223231212343. The reversal of 12223231212331 is 13321213232221.

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 12223231212331 - 2¹¹ = 12223231210283 is a prime.

It is a super-2 number, since 2×12223231212331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12223231212331.

It is not an unprimeable number, because it can be changed into a prime (12223231213331) 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, 1557889426 + ... + 1557897271.

It is an arithmetic number, because the mean of its divisors is an integer number (3056586750738).

Almost surely, 2^{12223231212331} is an apocalyptic number.

12223231212331 is a deficient number, since it is larger than the sum of its proper divisors (3115790621).

12223231212331 is an equidigital number, since it uses as much as digits as its factorization.

12223231212331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115790620.

The product of its digits is 5184, while the sum is 28.

Adding to 12223231212331 its reverse (13321213232221), we get a palindrome (25544444444552).

The spelling of 12223231212331 in words is "twelve trillion, two hundred twenty-three billion, two hundred thirty-one million, two hundred twelve thousand, three hundred thirty-one".