12200203 has 4 divisors (see below), whose sum is σ = 12917880. Its totient is φ = 11482528.

The previous prime is 12200179. The next prime is 12200239. The reversal of 12200203 is 30200221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30200221 = 223 ⋅135427.

It is a cyclic number.

It is not a de Polignac number, because 12200203 - 2⁵ = 12200171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12200203.

It is not an unprimeable number, because it can be changed into a prime (12200263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358813 + ... + 358846.

It is an arithmetic number, because the mean of its divisors is an integer number (3229470).

Almost surely, 2^12200203 is an apocalyptic number.

12200203 is a deficient number, since it is larger than the sum of its proper divisors (717677).

12200203 is an equidigital number, since it uses as much as digits as its factorization.

12200203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717676.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 12200203 is about 3492.8788985592. The cubic root of 12200203 is about 230.2090286246.

Adding to 12200203 its reverse (30200221), we get a palindrome (42400424).

It can be divided in two parts, 12200 and 203, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 12200203 in words is "twelve million, two hundred thousand, two hundred three".