12132233 has 4 divisors (see below), whose sum is σ = 12142848. Its totient is φ = 12121620.

The previous prime is 12132223. The next prime is 12132259. The reversal of 12132233 is 33223121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 33223121 = 4441 ⋅7481.

It is a cyclic number.

It is not a de Polignac number, because 12132233 - 2⁴ = 12132217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12132223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3353 + ... + 5958.

It is an arithmetic number, because the mean of its divisors is an integer number (3035712).

Almost surely, 2^12132233 is an apocalyptic number.

It is an amenable number.

12132233 is a deficient number, since it is larger than the sum of its proper divisors (10615).

12132233 is an equidigital number, since it uses as much as digits as its factorization.

12132233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10614.

The product of its digits is 216, while the sum is 17.

The square root of 12132233 is about 3483.1355127241. The cubic root of 12132233 is about 229.7807172776.

Adding to 12132233 its reverse (33223121), we get a palindrome (45355354).

The spelling of 12132233 in words is "twelve million, one hundred thirty-two thousand, two hundred thirty-three".