1223033312 has 24 divisors (see below), whose sum is σ = 2549486016. Its totient is φ = 575544832.

The previous prime is 1223033311. The next prime is 1223033333. The reversal of 1223033312 is 2133303221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223033311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1123568 + ... + 1124655.

It is an arithmetic number, because the mean of its divisors is an integer number (106228584).

Almost surely, 2^1223033312 is an apocalyptic number.

It is an amenable number.

1223033312 is an abundant number, since it is smaller than the sum of its proper divisors (1326452704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223033312 is a wasteful number, since it uses less digits than its factorization.

1223033312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248250 (or 2248242 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1223033312 is about 34971.8931715170. The cubic root of 1223033312 is about 1069.4145666376.

Adding to 1223033312 its reverse (2133303221), we get a palindrome (3356336533).

The spelling of 1223033312 in words is "one billion, two hundred twenty-three million, thirty-three thousand, three hundred twelve".