12187101 has 8 divisors (see below), whose sum is σ = 16270144. Its totient is φ = 8114400.

The previous prime is 12187073. The next prime is 12187117. The reversal of 12187101 is 10178121.

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

It is not a de Polignac number, because 12187101 - 2⁵ = 12187069 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 (12187121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801 + ... + 5001.

It is an arithmetic number, because the mean of its divisors is an integer number (2033768).

Almost surely, 2^12187101 is an apocalyptic number.

It is an amenable number.

12187101 is a deficient number, since it is larger than the sum of its proper divisors (4083043).

12187101 is an equidigital number, since it uses as much as digits as its factorization.

12187101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5171.

The product of its (nonzero) digits is 112, while the sum is 21.

The square root of 12187101 is about 3491.0028645076. The cubic root of 12187101 is about 230.1265906779.

The spelling of 12187101 in words is "twelve million, one hundred eighty-seven thousand, one hundred one".