12206561512 has 16 divisors (see below), whose sum is σ = 22989939840. Its totient is φ = 6075910896.

The previous prime is 12206561501. The next prime is 12206561513. The reversal of 12206561512 is 21516560221.

12206561512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12206561512² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12206561513) 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 3 ways as a sum of consecutive naturals, for example, 3419338 + ... + 3422905.

It is an arithmetic number, because the mean of its divisors is an integer number (1436871240).

Almost surely, 2^12206561512 is an apocalyptic number.

It is an amenable number.

12206561512 is a deficient number, since it is larger than the sum of its proper divisors (10783378328).

12206561512 is a wasteful number, since it uses less digits than its factorization.

12206561512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6842472 (or 6842468 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 12206561512 in words is "twelve billion, two hundred six million, five hundred sixty-one thousand, five hundred twelve".