12223421312 has 16 divisors (see below), whose sum is σ = 24351347400. Its totient is φ = 6111710592.

The previous prime is 12223421299. The next prime is 12223421339. The reversal of 12223421312 is 21312432221.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47747612 + ... + 47747867.

Almost surely, 2^12223421312 is an apocalyptic number.

It is an amenable number.

12223421312 is a deficient number, since it is larger than the sum of its proper divisors (12127926088).

12223421312 is an frugal number, since it uses more digits than its factorization.

12223421312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95495493 (or 95495481 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

Adding to 12223421312 its reverse (21312432221), we get a palindrome (33535853533).

The spelling of 12223421312 in words is "twelve billion, two hundred twenty-three million, four hundred twenty-one thousand, three hundred twelve".