1223222233 has 8 divisors (see below), whose sum is σ = 1339838280. Its totient is φ = 1111568640.

The previous prime is 1223222219. The next prime is 1223222243. The reversal of 1223222233 is 3322223221.

It can be written as a sum of positive squares in 4 ways, for example, as 236759769 + 986462464 = 15387^2 + 31408^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223222233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1223222213) 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, 1240098 + ... + 1241083.

It is an arithmetic number, because the mean of its divisors is an integer number (167479785).

Almost surely, 2^1223222233 is an apocalyptic number.

It is an amenable number.

1223222233 is a deficient number, since it is larger than the sum of its proper divisors (116616047).

1223222233 is a wasteful number, since it uses less digits than its factorization.

1223222233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481227.

The product of its digits is 1728, while the sum is 22.

The square root of 1223222233 is about 34974.5941077234. The cubic root of 1223222233 is about 1069.4696276801.

Adding to 1223222233 its reverse (3322223221), we get a palindrome (4545445454).

The spelling of 1223222233 in words is "one billion, two hundred twenty-three million, two hundred twenty-two thousand, two hundred thirty-three".