1222257323 has 24 divisors (see below), whose sum is σ = 1449642240. Its totient is φ = 1027313280.

The previous prime is 1222257307. The next prime is 1222257353. The reversal of 1222257323 is 3237522221.

It is not a de Polignac number, because 1222257323 - 2⁴ = 1222257307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222257353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 682313 + ... + 684101.

It is an arithmetic number, because the mean of its divisors is an integer number (60401760).

Almost surely, 2^1222257323 is an apocalyptic number.

1222257323 is a deficient number, since it is larger than the sum of its proper divisors (227384917).

1222257323 is a wasteful number, since it uses less digits than its factorization.

1222257323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067 (or 2060 counting only the distinct ones).

The product of its digits is 10080, while the sum is 29.

The square root of 1222257323 is about 34960.7969445778. The cubic root of 1222257323 is about 1069.1883450779.

Adding to 1222257323 its reverse (3237522221), we get a palindrome (4459779544).

The spelling of 1222257323 in words is "one billion, two hundred twenty-two million, two hundred fifty-seven thousand, three hundred twenty-three".