12200051605 has 12 divisors (see below), whose sum is σ = 17030276460. Its totient is φ = 8365749504.

The previous prime is 12200051597. The next prime is 12200051653. The reversal of 12200051605 is 50615000221.

12200051605 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 2 ways, for example, as 9546462436 + 2653589169 = 97706^2 + 51513^2 .

It is not a de Polignac number, because 12200051605 - 2³ = 12200051597 is a prime.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 24897820 + ... + 24898309.

It is an arithmetic number, because the mean of its divisors is an integer number (1419189705).

Almost surely, 2^12200051605 is an apocalyptic number.

It is an amenable number.

12200051605 is a deficient number, since it is larger than the sum of its proper divisors (4830224855).

12200051605 is an equidigital number, since it uses as much as digits as its factorization.

12200051605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49796148 (or 49796141 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 12200051605 its reverse (50615000221), we get a palindrome (62815051826).

The spelling of 12200051605 in words is "twelve billion, two hundred million, fifty-one thousand, six hundred five".