1212323332312 has 16 divisors (see below), whose sum is σ = 2273742847800. Its totient is φ = 605991906240.

The previous prime is 1212323332309. The next prime is 1212323332313. The reversal of 1212323332312 is 2132333232121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212323332313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21189637 + ... + 21246772.

Almost surely, 2^{1212323332312} is an apocalyptic number.

It is an amenable number.

1212323332312 is a deficient number, since it is larger than the sum of its proper divisors (1061419515488).

1212323332312 is a wasteful number, since it uses less digits than its factorization.

1212323332312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42439986 (or 42439982 counting only the distinct ones).

The product of its digits is 7776, while the sum is 28.

Adding to 1212323332312 its reverse (2132333232121), we get a palindrome (3344656564433).

The spelling of 1212323332312 in words is "one trillion, two hundred twelve billion, three hundred twenty-three million, three hundred thirty-two thousand, three hundred twelve".