12331221121336 has 16 divisors (see below), whose sum is σ = 24899581110600. Its totient is φ = 5691332825184.

The previous prime is 12331221121187. The next prime is 12331221121337. The reversal of 12331221121336 is 63312112213321.

It is a junction number, because it is equal to n+sod(n) for n = 12331221121298 and 12331221121307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331221121337) by changing a digit.

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, 59284716826 + ... + 59284717033.

Almost surely, 2^{12331221121336} is an apocalyptic number.

It is an amenable number.

12331221121336 is an abundant number, since it is smaller than the sum of its proper divisors (12568359989264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12331221121336 is a wasteful number, since it uses less digits than its factorization.

12331221121336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118569433878 (or 118569433874 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

Adding to 12331221121336 its reverse (63312112213321), we get a palindrome (75643333334657).

The spelling of 12331221121336 in words is "twelve trillion, three hundred thirty-one billion, two hundred twenty-one million, one hundred twenty-one thousand, three hundred thirty-six".