12222115907 has 4 divisors (see below), whose sum is σ = 12222604656. Its totient is φ = 12221627160.

The previous prime is 12222115903. The next prime is 12222115943. The reversal of 12222115907 is 70951122221.

12222115907 is digitally balanced in base 2, 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 12222115907 - 2² = 12222115903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222115901) 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 in 3 ways as a sum of consecutive naturals, for example, 204719 + ... + 257592.

It is an arithmetic number, because the mean of its divisors is an integer number (3055651164).

Almost surely, 2^12222115907 is an apocalyptic number.

12222115907 is a deficient number, since it is larger than the sum of its proper divisors (488749).

12222115907 is an equidigital number, since it uses as much as digits as its factorization.

12222115907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488748.

The product of its (nonzero) digits is 5040, while the sum is 32.

The spelling of 12222115907 in words is "twelve billion, two hundred twenty-two million, one hundred fifteen thousand, nine hundred seven".