12330332211221 has 4 divisors (see below), whose sum is σ = 12330662634444. Its totient is φ = 12330001788000.

The previous prime is 12330332211209. The next prime is 12330332211229. The reversal of 12330332211221 is 12211223303321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4263766582321 + 8066565628900 = 2064889^2 + 2840170^2 .

It is a cyclic number.

It is not a de Polignac number, because 12330332211221 - 2¹⁰ = 12330332210197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12330332211229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165155630 + ... + 165230271.

It is an arithmetic number, because the mean of its divisors is an integer number (3082665658611).

Almost surely, 2^{12330332211221} is an apocalyptic number.

It is an amenable number.

12330332211221 is a deficient number, since it is larger than the sum of its proper divisors (330423223).

12330332211221 is an equidigital number, since it uses as much as digits as its factorization.

12330332211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330423222.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 12330332211221 its reverse (12211223303321), we get a palindrome (24541555514542).

The spelling of 12330332211221 in words is "twelve trillion, three hundred thirty billion, three hundred thirty-two million, two hundred eleven thousand, two hundred twenty-one".