223303212 has 36 divisors (see below), whose sum is σ = 615776616. Its totient is φ = 67667520.

The previous prime is 223303207. The next prime is 223303229. The reversal of 223303212 is 212303322.

It is a happy number.

223303212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281553 + ... + 282344.

It is an arithmetic number, because the mean of its divisors is an integer number (17104906).

Almost surely, 2^223303212 is an apocalyptic number.

223303212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

223303212 is an abundant number, since it is smaller than the sum of its proper divisors (392473404).

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

223303212 is a wasteful number, since it uses less digits than its factorization.

223303212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563918 (or 563913 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 223303212 is about 14943.3333630753. Note that the first 4 decimals coincide. The cubic root of 223303212 is about 606.6874204281.

Adding to 223303212 its reverse (212303322), we get a palindrome (435606534).

The spelling of 223303212 in words is "two hundred twenty-three million, three hundred three thousand, two hundred twelve".