12101147 has 2 divisors, whose sum is σ = 12101148. Its totient is φ = 12101146.

The previous prime is 12101123. The next prime is 12101153. The reversal of 12101147 is 74110121.

12101147 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 12101147 - 2²⁰ = 11052571 is a prime.

It is not a weakly prime, because it can be changed into another prime (12101647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050573 + 6050574.

It is an arithmetic number, because the mean of its divisors is an integer number (6050574).

Almost surely, 2^12101147 is an apocalyptic number.

12101147 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101147 is an equidigital number, since it uses as much as digits as its factorization.

12101147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 12101147 is about 3478.6702919363. The cubic root of 12101147 is about 229.5842963659.

Adding to 12101147 its reverse (74110121), we get a palindrome (86211268).

It can be divided in two parts, 1210114 and 7, that added together give a palindrome (1210121).

The spelling of 12101147 in words is "twelve million, one hundred one thousand, one hundred forty-seven".