12102221105 has 8 divisors (see below), whose sum is σ = 15639793512. Its totient is φ = 8937024768.

The previous prime is 12102221039. The next prime is 12102221111. The reversal of 12102221105 is 50112220121.

12102221105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1737555856 + 10364665249 = 41684^2 + 101807^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12102221105 - 2⁸ = 12102220849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 93093944 + ... + 93094073.

It is an arithmetic number, because the mean of its divisors is an integer number (1954974189).

Almost surely, 2^12102221105 is an apocalyptic number.

It is an amenable number.

12102221105 is a deficient number, since it is larger than the sum of its proper divisors (3537572407).

12102221105 is a wasteful number, since it uses less digits than its factorization.

12102221105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186188035.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 12102221105 its reverse (50112220121), we get a palindrome (62214441226).

The spelling of 12102221105 in words is "twelve billion, one hundred two million, two hundred twenty-one thousand, one hundred five".