1121322223 has 20 divisors (see below), whose sum is σ = 1338676328. Its totient is φ = 938694960.

The previous prime is 1121322203. The next prime is 1121322247. The reversal of 1121322223 is 3222231211.

It is not a de Polignac number, because 1121322223 - 2⁹ = 1121321711 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 1121322223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121322203) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 97813 + ... + 108673.

Almost surely, 2^1121322223 is an apocalyptic number.

1121322223 is a deficient number, since it is larger than the sum of its proper divisors (217354105).

1121322223 is an frugal number, since it uses more digits than its factorization.

1121322223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10932 (or 10911 counting only the distinct ones).

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

The square root of 1121322223 is about 33486.1497189510. The cubic root of 1121322223 is about 1038.9073284145.

Adding to 1121322223 its reverse (3222231211), we get a palindrome (4343553434).

The spelling of 1121322223 in words is "one billion, one hundred twenty-one million, three hundred twenty-two thousand, two hundred twenty-three".