12156205110712 has 16 divisors (see below), whose sum is σ = 24546183396840. Its totient is φ = 5610556204896.

The previous prime is 12156205110697. The next prime is 12156205110761. The reversal of 12156205110712 is 21701150265121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58443293698 + ... + 58443293905.

Almost surely, 2^{12156205110712} is an apocalyptic number.

It is an amenable number.

12156205110712 is an abundant number, since it is smaller than the sum of its proper divisors (12389978286128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12156205110712 is a wasteful number, since it uses less digits than its factorization.

12156205110712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116886587622 (or 116886587618 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 34.

Adding to 12156205110712 its reverse (21701150265121), we get a palindrome (33857355375833).

The spelling of 12156205110712 in words is "twelve trillion, one hundred fifty-six billion, two hundred five million, one hundred ten thousand, seven hundred twelve".