12120207 has 24 divisors (see below), whose sum is σ = 17958192. Its totient is φ = 7265280.

The previous prime is 12120181. The next prime is 12120223. The reversal of 12120207 is 70202121.

It is not a de Polignac number, because 12120207 - 2⁷ = 12120079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62703 + ... + 62895.

It is an arithmetic number, because the mean of its divisors is an integer number (748258).

Almost surely, 2^12120207 is an apocalyptic number.

12120207 is a deficient number, since it is larger than the sum of its proper divisors (5837985).

12120207 is a wasteful number, since it uses less digits than its factorization.

12120207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 12120207 is about 3481.4087665771. The cubic root of 12120207 is about 229.7047692786.

Adding to 12120207 its reverse (70202121), we get a palindrome (82322328).

The spelling of 12120207 in words is "twelve million, one hundred twenty thousand, two hundred seven".