12200209 has 8 divisors (see below), whose sum is σ = 14100480. Its totient is φ = 10339296.

The previous prime is 12200179. The next prime is 12200239. The reversal of 12200209 is 90200221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12200179) and next prime (12200239).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12200209 - 2⁹ = 12199697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12200192 and 12200201.

It is not an unprimeable number, because it can be changed into a prime (12200239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9169 + ... + 10414.

It is an arithmetic number, because the mean of its divisors is an integer number (1762560).

Almost surely, 2^12200209 is an apocalyptic number.

It is an amenable number.

12200209 is a deficient number, since it is larger than the sum of its proper divisors (1900271).

12200209 is an equidigital number, since it uses as much as digits as its factorization.

12200209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19679.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 12200209 is about 3492.8797574494. The cubic root of 12200209 is about 230.2090663631.

The spelling of 12200209 in words is "twelve million, two hundred thousand, two hundred nine".