12021231303321 has 16 divisors (see below), whose sum is σ = 16467701856384. Its totient is φ = 7794620527104.

The previous prime is 12021231303269. The next prime is 12021231303337. The reversal of 12021231303321 is 12330313212021.

It is a de Polignac number, because none of the positive numbers 2^k-12021231303321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12021231303291 and 12021231303300.

It is not an unprimeable number, because it can be changed into a prime (12021231503321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20085085 + ... + 20674938.

It is an arithmetic number, because the mean of its divisors is an integer number (1029231366024).

Almost surely, 2^{12021231303321} is an apocalyptic number.

It is an amenable number.

12021231303321 is a deficient number, since it is larger than the sum of its proper divisors (4446470553063).

12021231303321 is a wasteful number, since it uses less digits than its factorization.

12021231303321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40762720.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 12021231303321 its reverse (12330313212021), we get a palindrome (24351544515342).

The spelling of 12021231303321 in words is "twelve trillion, twenty-one billion, two hundred thirty-one million, three hundred three thousand, three hundred twenty-one".