12123012122 has 16 divisors (see below), whose sum is σ = 19588649640. Its totient is φ = 5593715712.

The previous prime is 12123012119. The next prime is 12123012127. The reversal of 12123012122 is 22121032121.

12123012122 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 3039206641 + 9083805481 = 55129^2 + 95309^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12123012122.

It is not an unprimeable number, because it can be changed into a prime (12123012127) 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 7 ways as a sum of consecutive naturals, for example, 37154 + ... + 160082.

Almost surely, 2^12123012122 is an apocalyptic number.

12123012122 is a deficient number, since it is larger than the sum of its proper divisors (7465637518).

12123012122 is a wasteful number, since it uses less digits than its factorization.

12123012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126737.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12123012122 its reverse (22121032121), we get a palindrome (34244044243).

The spelling of 12123012122 in words is "twelve billion, one hundred twenty-three million, twelve thousand, one hundred twenty-two".