12212327 has 2 divisors, whose sum is σ = 12212328. Its totient is φ = 12212326.

The previous prime is 12212311. The next prime is 12212363. The reversal of 12212327 is 72321221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12212327 - 2⁴ = 12212311 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12212299 and 12212308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12212377) 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 as a sum of consecutive naturals, namely, 6106163 + 6106164.

It is an arithmetic number, because the mean of its divisors is an integer number (6106164).

Almost surely, 2^12212327 is an apocalyptic number.

12212327 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212327 is an equidigital number, since it uses as much as digits as its factorization.

12212327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 20.

The square root of 12212327 is about 3494.6139987129. The cubic root of 12212327 is about 230.2852604226.

Adding to 12212327 its reverse (72321221), we get a palindrome (84533548).

The spelling of 12212327 in words is "twelve million, two hundred twelve thousand, three hundred twenty-seven".