12132223 has 2 divisors, whose sum is σ = 12132224. Its totient is φ = 12132222.

The previous prime is 12132217. The next prime is 12132259. The reversal of 12132223 is 32223121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12132223 - 2⁹ = 12131711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12132197 and 12132206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12132823) 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 as a sum of consecutive naturals, namely, 6066111 + 6066112.

It is an arithmetic number, because the mean of its divisors is an integer number (6066112).

Almost surely, 2^12132223 is an apocalyptic number.

12132223 is a deficient number, since it is larger than the sum of its proper divisors (1).

12132223 is an equidigital number, since it uses as much as digits as its factorization.

12132223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 16.

The square root of 12132223 is about 3483.1340772356. The cubic root of 12132223 is about 229.7806541453.

Adding to 12132223 its reverse (32223121), we get a palindrome (44355344).

It can be divided in two parts, 121 and 32223, that multiplied together give a palindrome (3898983).

The spelling of 12132223 in words is "twelve million, one hundred thirty-two thousand, two hundred twenty-three".