12321201311212 has 12 divisors (see below), whose sum is σ = 21578351062240. Its totient is φ = 6155958150576.

The previous prime is 12321201311197. The next prime is 12321201311231. The reversal of 12321201311212 is 21211310212321.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160620287 + ... + 1160630902.

Almost surely, 2^{12321201311212} is an apocalyptic number.

It is an amenable number.

12321201311212 is a deficient number, since it is larger than the sum of its proper divisors (9257149751028).

12321201311212 is a wasteful number, since it uses less digits than its factorization.

12321201311212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321252520 (or 2321252518 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 12321201311212 its reverse (21211310212321), we get a palindrome (33532511523533).

The spelling of 12321201311212 in words is "twelve trillion, three hundred twenty-one billion, two hundred one million, three hundred eleven thousand, two hundred twelve".