12323222012 has 12 divisors (see below), whose sum is σ = 21710375400. Its totient is φ = 6120257616.

The previous prime is 12323221979. The next prime is 12323222057. The reversal of 12323222012 is 21022232321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10337678 + ... + 10338869.

It is an arithmetic number, because the mean of its divisors is an integer number (1809197950).

Almost surely, 2^12323222012 is an apocalyptic number.

It is an amenable number.

12323222012 is a deficient number, since it is larger than the sum of its proper divisors (9387153388).

12323222012 is a wasteful number, since it uses less digits than its factorization.

12323222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20676700 (or 20676698 counting only the distinct ones).

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

Adding to 12323222012 its reverse (21022232321), we get a palindrome (33345454333).

The spelling of 12323222012 in words is "twelve billion, three hundred twenty-three million, two hundred twenty-two thousand, twelve".