1223331118 has 16 divisors (see below), whose sum is σ = 1943630640. Its totient is φ = 575479936.

The previous prime is 1223331113. The next prime is 1223331133. The reversal of 1223331118 is 8111333221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1223331092 and 1223331101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223331113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136380 + ... + 145072.

It is an arithmetic number, because the mean of its divisors is an integer number (121476915).

Almost surely, 2^1223331118 is an apocalyptic number.

1223331118 is a deficient number, since it is larger than the sum of its proper divisors (720299522).

1223331118 is a wasteful number, since it uses less digits than its factorization.

1223331118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12851.

The product of its digits is 864, while the sum is 25.

The square root of 1223331118 is about 34976.1507030148. The cubic root of 1223331118 is about 1069.5013596479.

Adding to 1223331118 its reverse (8111333221), we get a palindrome (9334664339).

The spelling of 1223331118 in words is "one billion, two hundred twenty-three million, three hundred thirty-one thousand, one hundred eighteen".