1321182227 has 2 divisors, whose sum is σ = 1321182228. Its totient is φ = 1321182226.

The previous prime is 1321182151. The next prime is 1321182229. The reversal of 1321182227 is 7222811231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1321182227 - 2²⁰ = 1320133651 is a prime.

Together with 1321182229, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1321182227.

It is not a weakly prime, because it can be changed into another prime (1321182229) 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, 660591113 + 660591114.

It is an arithmetic number, because the mean of its divisors is an integer number (660591114).

Almost surely, 2^1321182227 is an apocalyptic number.

1321182227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321182227 is an equidigital number, since it uses as much as digits as its factorization.

1321182227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 29.

The square root of 1321182227 is about 36348.0704714845. The cubic root of 1321182227 is about 1097.2887019777.

Adding to 1321182227 its reverse (7222811231), we get a palindrome (8543993458).

The spelling of 1321182227 in words is "one billion, three hundred twenty-one million, one hundred eighty-two thousand, two hundred twenty-seven".