12212012133 has 12 divisors (see below), whose sum is σ = 17641828620. Its totient is φ = 8140300416.

The previous prime is 12212012093. The next prime is 12212012147. The reversal of 12212012133 is 33121021221.

12212012133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5223386529 + 6988625604 = 72273^2 + 83598^2 .

It is not a de Polignac number, because 12212012133 - 2¹⁷ = 12211881061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212012233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8766 + ... + 156527.

It is an arithmetic number, because the mean of its divisors is an integer number (1470152385).

Almost surely, 2^12212012133 is an apocalyptic number.

It is an amenable number.

12212012133 is a deficient number, since it is larger than the sum of its proper divisors (5429816487).

12212012133 is a wasteful number, since it uses less digits than its factorization.

12212012133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173508 (or 173505 counting only the distinct ones).

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

Adding to 12212012133 its reverse (33121021221), we get a palindrome (45333033354).

The spelling of 12212012133 in words is "twelve billion, two hundred twelve million, twelve thousand, one hundred thirty-three".