12001223134 has 16 divisors (see below), whose sum is σ = 19575924048. Its totient is φ = 5494995072.

The previous prime is 12001223093. The next prime is 12001223147. The reversal of 12001223134 is 43132210021.

It is a happy number.

12001223134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 4768704 + ... + 4771219.

It is an arithmetic number, because the mean of its divisors is an integer number (1223495253).

Almost surely, 2^12001223134 is an apocalyptic number.

12001223134 is a deficient number, since it is larger than the sum of its proper divisors (7574700914).

12001223134 is a wasteful number, since it uses less digits than its factorization.

12001223134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9539979.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12001223134 its reverse (43132210021), we get a palindrome (55133433155).

The spelling of 12001223134 in words is "twelve billion, one million, two hundred twenty-three thousand, one hundred thirty-four".