12111207 has 4 divisors (see below), whose sum is σ = 16148280. Its totient is φ = 8074136.

The previous prime is 12111199. The next prime is 12111217. The reversal of 12111207 is 70211121.

12111207 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12111207 - 2³ = 12111199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2018532 + ... + 2018537.

It is an arithmetic number, because the mean of its divisors is an integer number (4037070).

Almost surely, 2^12111207 is an apocalyptic number.

12111207 is a deficient number, since it is larger than the sum of its proper divisors (4037073).

12111207 is an equidigital number, since it uses as much as digits as its factorization.

12111207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037072.

The product of its (nonzero) digits is 28, while the sum is 15.

The square root of 12111207 is about 3480.1159463443. The cubic root of 12111207 is about 229.6478985545.

Adding to 12111207 its reverse (70211121), we get a palindrome (82322328).

The spelling of 12111207 in words is "twelve million, one hundred eleven thousand, two hundred seven".