12122007 has 4 divisors (see below), whose sum is σ = 16162680. Its totient is φ = 8081336.

The previous prime is 12121987. The next prime is 12122009. The reversal of 12122007 is 70022121.

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 12122007 - 2¹¹ = 12119959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122009) 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, 2020332 + ... + 2020337.

It is an arithmetic number, because the mean of its divisors is an integer number (4040670).

Almost surely, 2^12122007 is an apocalyptic number.

12122007 is a deficient number, since it is larger than the sum of its proper divisors (4040673).

12122007 is an equidigital number, since it uses as much as digits as its factorization.

12122007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040672.

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

The square root of 12122007 is about 3481.6672730173. The cubic root of 12122007 is about 229.7161400448.

Adding to 12122007 its reverse (70022121), we get a palindrome (82144128).

The spelling of 12122007 in words is "twelve million, one hundred twenty-two thousand, seven".