12204671 has 2 divisors, whose sum is σ = 12204672. Its totient is φ = 12204670.

The previous prime is 12204641. The next prime is 12204677. The reversal of 12204671 is 17640221.

It is a strong prime.

It is an emirp because it is prime and its reverse (17640221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12204671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12204677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6102335 + 6102336.

It is an arithmetic number, because the mean of its divisors is an integer number (6102336).

Almost surely, 2^12204671 is an apocalyptic number.

12204671 is a deficient number, since it is larger than the sum of its proper divisors (1).

12204671 is an equidigital number, since it uses as much as digits as its factorization.

12204671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 12204671 is about 3493.5184270303. The cubic root of 12204671 is about 230.2371278402.

Adding to 12204671 its reverse (17640221), we get a palindrome (29844892).

The spelling of 12204671 in words is "twelve million, two hundred four thousand, six hundred seventy-one".