12003212 has 24 divisors (see below), whose sum is σ = 23814000. Its totient is φ = 5247936.

The previous prime is 12003209. The next prime is 12003221. The reversal of 12003212 is 21230021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12003193 and 12003202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5087 + ... + 7062.

It is an arithmetic number, because the mean of its divisors is an integer number (992250).

Almost surely, 2^12003212 is an apocalyptic number.

It is an amenable number.

12003212 is a deficient number, since it is larger than the sum of its proper divisors (11810788).

12003212 is a wasteful number, since it uses less digits than its factorization.

12003212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12185 (or 12183 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 12003212 is about 3464.5651963847. The cubic root of 12003212 is about 228.9632734781.

Adding to 12003212 its reverse (21230021), we get a palindrome (33233233).

The spelling of 12003212 in words is "twelve million, three thousand, two hundred twelve".