12012105235 has 128 divisors (see below), whose sum is σ = 17766604800. Its totient is φ = 7709644800.

The previous prime is 12012105227. The next prime is 12012105239. The reversal of 12012105235 is 53250121021.

It is not a de Polignac number, because 12012105235 - 2³ = 12012105227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12012105239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 118931685 + ... + 118931785.

It is an arithmetic number, because the mean of its divisors is an integer number (138801600).

Almost surely, 2^12012105235 is an apocalyptic number.

12012105235 is a deficient number, since it is larger than the sum of its proper divisors (5754499565).

12012105235 is a wasteful number, since it uses less digits than its factorization.

12012105235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293.

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

Adding to 12012105235 its reverse (53250121021), we get a palindrome (65262226256).

The spelling of 12012105235 in words is "twelve billion, twelve million, one hundred five thousand, two hundred thirty-five".