12111220007 has 2 divisors, whose sum is σ = 12111220008. Its totient is φ = 12111220006.

The previous prime is 12111220003. The next prime is 12111220061. The reversal of 12111220007 is 70002211121.

12111220007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12111220007 - 2² = 12111220003 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12111220003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055610003 + 6055610004.

It is an arithmetic number, because the mean of its divisors is an integer number (6055610004).

Almost surely, 2^12111220007 is an apocalyptic number.

12111220007 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111220007 is an equidigital number, since it uses as much as digits as its factorization.

12111220007 is an odious number, because the sum of its binary digits is odd.

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

Adding to 12111220007 its reverse (70002211121), we get a palindrome (82113431128).

The spelling of 12111220007 in words is "twelve billion, one hundred eleven million, two hundred twenty thousand, seven".