223440212 has 24 divisors (see below), whose sum is σ = 400816416. Its totient is φ = 108930528.

The previous prime is 223440187. The next prime is 223440223. The reversal of 223440212 is 212044322.

223440212 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 191543 + ... + 192705.

It is an arithmetic number, because the mean of its divisors is an integer number (16700684).

Almost surely, 2^223440212 is an apocalyptic number.

It is an amenable number.

223440212 is a deficient number, since it is larger than the sum of its proper divisors (177376204).

223440212 is a wasteful number, since it uses less digits than its factorization.

223440212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327 (or 2325 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 223440212 is about 14947.9166441347. The cubic root of 223440212 is about 606.8114657922.

Adding to 223440212 its reverse (212044322), we get a palindrome (435484534).

The spelling of 223440212 in words is "two hundred twenty-three million, four hundred forty thousand, two hundred twelve".