12015122344 has 8 divisors (see below), whose sum is σ = 22528354410. Its totient is φ = 6007561168.

The previous prime is 12015122297. The next prime is 12015122363. The reversal of 12015122344 is 44322151021.

It can be written as a sum of positive squares in only one way, i.e., 10574008900 + 1441113444 = 102830^2 + 37962^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 750945139 + ... + 750945154.

Almost surely, 2^12015122344 is an apocalyptic number.

It is an amenable number.

12015122344 is a deficient number, since it is larger than the sum of its proper divisors (10513232066).

12015122344 is a wasteful number, since it uses less digits than its factorization.

12015122344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501890299 (or 1501890295 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 12015122344 its reverse (44322151021), we get a palindrome (56337273365).

The spelling of 12015122344 in words is "twelve billion, fifteen million, one hundred twenty-two thousand, three hundred forty-four".