12133033321221 has 12 divisors (see below), whose sum is σ = 17952943614060. Its totient is φ = 7891403785920.

The previous prime is 12133033321219. The next prime is 12133033321313. The reversal of 12133033321221 is 12212333033121.

12133033321221 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 303 + 332 + 1 + 2 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3897505124100 + 8235528197121 = 1974210^2 + 2869761^2 .

It is not a de Polignac number, because 12133033321221 - 2¹ = 12133033321219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12133033321421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16440424186 + ... + 16440424923.

It is an arithmetic number, because the mean of its divisors is an integer number (1496078634505).

Almost surely, 2^{12133033321221} is an apocalyptic number.

It is an amenable number.

12133033321221 is a deficient number, since it is larger than the sum of its proper divisors (5819910292839).

12133033321221 is a wasteful number, since it uses less digits than its factorization.

12133033321221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32880849156 (or 32880849153 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 12133033321221 its reverse (12212333033121), we get a palindrome (24345366354342).

The spelling of 12133033321221 in words is "twelve trillion, one hundred thirty-three billion, thirty-three million, three hundred twenty-one thousand, two hundred twenty-one".