12204191 has 8 divisors (see below), whose sum is σ = 13079904. Its totient is φ = 11357280.

The previous prime is 12204169. The next prime is 12204197. The reversal of 12204191 is 19140221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12204191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12204197) 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, 6320 + ... + 8021.

It is an arithmetic number, because the mean of its divisors is an integer number (1634988).

Almost surely, 2^12204191 is an apocalyptic number.

12204191 is a deficient number, since it is larger than the sum of its proper divisors (875713).

12204191 is a wasteful number, since it uses less digits than its factorization.

12204191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14401.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 12204191 is about 3493.4497277047. The cubic root of 12204191 is about 230.2341094529.

The spelling of 12204191 in words is "twelve million, two hundred four thousand, one hundred ninety-one".