1223213227 has 2 divisors, whose sum is σ = 1223213228. Its totient is φ = 1223213226.

The previous prime is 1223213153. The next prime is 1223213237. The reversal of 1223213227 is 7223123221.

It is a strong prime.

It is an emirp because it is prime and its reverse (7223123221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223213227 - 2¹⁵ = 1223180459 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223213237) 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, 611606613 + 611606614.

It is an arithmetic number, because the mean of its divisors is an integer number (611606614).

Almost surely, 2^1223213227 is an apocalyptic number.

1223213227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223213227 is an equidigital number, since it uses as much as digits as its factorization.

1223213227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 25.

The square root of 1223213227 is about 34974.4653568857. The cubic root of 1223213227 is about 1069.4670030093.

Adding to 1223213227 its reverse (7223123221), we get a palindrome (8446336448).

The spelling of 1223213227 in words is "one billion, two hundred twenty-three million, two hundred thirteen thousand, two hundred twenty-seven".