12320320121212 has 24 divisors (see below), whose sum is σ = 21794158764000. Its totient is φ = 6093775486656.

The previous prime is 12320320121159. The next prime is 12320320121231. The reversal of 12320320121212 is 21212102302321.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 44595787 + ... + 44871202.

It is an arithmetic number, because the mean of its divisors is an integer number (908089948500).

Almost surely, 2^{12320320121212} is an apocalyptic number.

It is an amenable number.

12320320121212 is a deficient number, since it is larger than the sum of its proper divisors (9473838642788).

12320320121212 is a wasteful number, since it uses less digits than its factorization.

12320320121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89467365 (or 89467363 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12320320121212 its reverse (21212102302321), we get a palindrome (33532422423533).

The spelling of 12320320121212 in words is "twelve trillion, three hundred twenty billion, three hundred twenty million, one hundred twenty-one thousand, two hundred twelve".