12120221133 has 32 divisors (see below), whose sum is σ = 18054220800. Its totient is φ = 8036007408.

The previous prime is 12120221131. The next prime is 12120221153. The reversal of 12120221133 is 33112202121.

It is not a de Polignac number, because 12120221133 - 2¹ = 12120221131 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120221131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6098766 + ... + 6100752.

It is an arithmetic number, because the mean of its divisors is an integer number (564194400).

Almost surely, 2^12120221133 is an apocalyptic number.

It is an amenable number.

12120221133 is a deficient number, since it is larger than the sum of its proper divisors (5933999667).

12120221133 is a wasteful number, since it uses less digits than its factorization.

12120221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3118 (or 3112 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12120221133 its reverse (33112202121), we get a palindrome (45232423254).

The spelling of 12120221133 in words is "twelve billion, one hundred twenty million, two hundred twenty-one thousand, one hundred thirty-three".