12122120005 has 16 divisors (see below), whose sum is σ = 14946330240. Its totient is φ = 9431404992.

The previous prime is 12122119951. The next prime is 12122120033. The reversal of 12122120005 is 50002122121.

It is a happy number.

12122120005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12122120005 - 2¹⁷ = 12121988933 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 15 ways as a sum of consecutive naturals, for example, 441592 + ... + 468238.

It is an arithmetic number, because the mean of its divisors is an integer number (934145640).

Almost surely, 2^12122120005 is an apocalyptic number.

It is an amenable number.

12122120005 is a deficient number, since it is larger than the sum of its proper divisors (2824210235).

12122120005 is a wasteful number, since it uses less digits than its factorization.

12122120005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29148.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 12122120005 its reverse (50002122121), we get a palindrome (62124242126).

The spelling of 12122120005 in words is "twelve billion, one hundred twenty-two million, one hundred twenty thousand, five".