12223232312 has 16 divisors (see below), whose sum is σ = 23132754360. Its totient is φ = 6054497824.

The previous prime is 12223232293. The next prime is 12223232317. The reversal of 12223232312 is 21323232221.

It is a super-4 number, since 4×12223232312⁴ (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223232317) 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, 7138883 + ... + 7140594.

Almost surely, 2^12223232312 is an apocalyptic number.

It is an amenable number.

12223232312 is a deficient number, since it is larger than the sum of its proper divisors (10909522048).

12223232312 is a wasteful number, since it uses less digits than its factorization.

12223232312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14279590 (or 14279586 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

Adding to 12223232312 its reverse (21323232221), we get a palindrome (33546464533).

Subtracting 12223232312 from its reverse (21323232221), we obtain a palindrome (9099999909).

The spelling of 12223232312 in words is "twelve billion, two hundred twenty-three million, two hundred thirty-two thousand, three hundred twelve".