12012203 has 10 divisors (see below), whose sum is σ = 14016204. Its totient is φ = 10294116.

The previous prime is 12012197. The next prime is 12012257. The reversal of 12012203 is 30221021.

It is a happy number.

It is not a de Polignac number, because 12012203 - 2¹² = 12008107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012263) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 101 + ... + 4902.

Almost surely, 2^12012203 is an apocalyptic number.

12012203 is a deficient number, since it is larger than the sum of its proper divisors (2004001).

12012203 is an frugal number, since it uses more digits than its factorization.

12012203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5031 (or 5010 counting only the distinct ones).

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

The square root of 12012203 is about 3465.8625189121. The cubic root of 12012203 is about 229.0204274856.

Adding to 12012203 its reverse (30221021), we get a palindrome (42233224).

The spelling of 12012203 in words is "twelve million, twelve thousand, two hundred three".