1223205227 has 2 divisors, whose sum is σ = 1223205228. Its totient is φ = 1223205226.

The previous prime is 1223205197. The next prime is 1223205241. The reversal of 1223205227 is 7225023221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1223205227 - 2¹⁸ = 1222943083 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1223205196 and 1223205205.

It is not a weakly prime, because it can be changed into another prime (1223205727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611602613 + 611602614.

It is an arithmetic number, because the mean of its divisors is an integer number (611602614).

Almost surely, 2^1223205227 is an apocalyptic number.

1223205227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223205227 is an equidigital number, since it uses as much as digits as its factorization.

1223205227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 1223205227 is about 34974.3509875451. The cubic root of 1223205227 is about 1069.4646715121.

Adding to 1223205227 its reverse (7225023221), we get a palindrome (8448228448).

The spelling of 1223205227 in words is "one billion, two hundred twenty-three million, two hundred five thousand, two hundred twenty-seven".