1123222271 has 2 divisors, whose sum is σ = 1123222272. Its totient is φ = 1123222270.

The previous prime is 1123222223. The next prime is 1123222333. The reversal of 1123222271 is 1722223211.

It is a weak prime.

It is an emirp because it is prime and its reverse (1722223211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1123222271 - 2⁶ = 1123222207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123222211) 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, 561611135 + 561611136.

It is an arithmetic number, because the mean of its divisors is an integer number (561611136).

Almost surely, 2^1123222271 is an apocalyptic number.

1123222271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123222271 is an equidigital number, since it uses as much as digits as its factorization.

1123222271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 23.

The square root of 1123222271 is about 33514.5083657809. The cubic root of 1123222271 is about 1039.4937967380.

Adding to 1123222271 its reverse (1722223211), we get a palindrome (2845445482).

The spelling of 1123222271 in words is "one billion, one hundred twenty-three million, two hundred twenty-two thousand, two hundred seventy-one".