12223203312 has 40 divisors (see below), whose sum is σ = 31597133904. Its totient is φ = 4071752704.

The previous prime is 12223203299. The next prime is 12223203313. The reversal of 12223203312 is 21330232221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223203313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7443 + ... + 156530.

Almost surely, 2^12223203312 is an apocalyptic number.

12223203312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12223203312 is an abundant number, since it is smaller than the sum of its proper divisors (19373930592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12223203312 is a wasteful number, since it uses less digits than its factorization.

12223203312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165537 (or 165531 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12223203312 its reverse (21330232221), we get a palindrome (33553435533).

The spelling of 12223203312 in words is "twelve billion, two hundred twenty-three million, two hundred three thousand, three hundred twelve".