1222113223 has 16 divisors (see below), whose sum is σ = 1272775680. Its totient is φ = 1172613600.

The previous prime is 1222113209. The next prime is 1222113241. The reversal of 1222113223 is 3223112221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222113223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222113223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222113203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1258128 + ... + 1259098.

It is an arithmetic number, because the mean of its divisors is an integer number (79548480).

Almost surely, 2^1222113223 is an apocalyptic number.

1222113223 is a deficient number, since it is larger than the sum of its proper divisors (50662457).

1222113223 is an equidigital number, since it uses as much as digits as its factorization.

1222113223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518.

The product of its digits is 288, while the sum is 19.

The square root of 1222113223 is about 34958.7360040377. The cubic root of 1222113223 is about 1069.1463255313.

Adding to 1222113223 its reverse (3223112221), we get a palindrome (4445225444).

The spelling of 1222113223 in words is "one billion, two hundred twenty-two million, one hundred thirteen thousand, two hundred twenty-three".