12200012 has 12 divisors (see below), whose sum is σ = 23291016. Its totient is φ = 5545440.

The previous prime is 12200011. The next prime is 12200029. The reversal of 12200012 is 21000221.

It is not an unprimeable number, because it can be changed into a prime (12200011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138593 + ... + 138680.

It is an arithmetic number, because the mean of its divisors is an integer number (1940918).

Almost surely, 2^12200012 is an apocalyptic number.

It is an amenable number.

12200012 is a deficient number, since it is larger than the sum of its proper divisors (11091004).

12200012 is a wasteful number, since it uses less digits than its factorization.

12200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277288 (or 277286 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 12200012 is about 3492.8515571092. The cubic root of 12200012 is about 230.2078272742.

Adding to 12200012 its reverse (21000221), we get a palindrome (33200233).

The spelling of 12200012 in words is "twelve million, two hundred thousand, twelve".