12100247 has 2 divisors, whose sum is σ = 12100248. Its totient is φ = 12100246.

The previous prime is 12100229. The next prime is 12100259. The reversal of 12100247 is 74200121.

12100247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12100247 - 2⁶ = 12100183 is a prime.

It is a super-2 number, since 2×12100247² = 292831954922018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12100747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050123 + 6050124.

It is an arithmetic number, because the mean of its divisors is an integer number (6050124).

Almost surely, 2^12100247 is an apocalyptic number.

12100247 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100247 is an equidigital number, since it uses as much as digits as its factorization.

12100247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 12100247 is about 3478.5409297578. The cubic root of 12100247 is about 229.5786045917.

Adding to 12100247 its reverse (74200121), we get a palindrome (86300368).

The spelling of 12100247 in words is "twelve million, one hundred thousand, two hundred forty-seven".