12200287 has 4 divisors (see below), whose sum is σ = 13309416. Its totient is φ = 11091160.

The previous prime is 12200263. The next prime is 12200291. The reversal of 12200287 is 78200221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12200287 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200297) 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, 554548 + ... + 554569.

It is an arithmetic number, because the mean of its divisors is an integer number (3327354).

Almost surely, 2^12200287 is an apocalyptic number.

12200287 is a deficient number, since it is larger than the sum of its proper divisors (1109129).

12200287 is a wasteful number, since it uses less digits than its factorization.

12200287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109128.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 12200287 is about 3492.8909230035. The cubic root of 12200287 is about 230.2095569632.

The spelling of 12200287 in words is "twelve million, two hundred thousand, two hundred eighty-seven".