1223323212 has 24 divisors (see below), whose sum is σ = 2857752576. Its totient is φ = 407298448.

The previous prime is 1223323187. The next prime is 1223323223. The reversal of 1223323212 is 2123233221.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48708 + ... + 69419.

It is an arithmetic number, because the mean of its divisors is an integer number (119073024).

Almost surely, 2^1223323212 is an apocalyptic number.

1223323212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1223323212 is an abundant number, since it is smaller than the sum of its proper divisors (1634429364).

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

1223323212 is a wasteful number, since it uses less digits than its factorization.

1223323212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118997 (or 118995 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 1223323212 is about 34976.0376829623. The cubic root of 1223323212 is about 1069.4990556938.

Adding to 1223323212 its reverse (2123233221), we get a palindrome (3346556433).

The spelling of 1223323212 in words is "one billion, two hundred twenty-three million, three hundred twenty-three thousand, two hundred twelve".