12055555205312 has 56 divisors (see below), whose sum is σ = 24966531455712. Its totient is φ = 5764852684800.

The previous prime is 12055555205311. The next prime is 12055555205387. The reversal of 12055555205312 is 21350255555021.

It is a super-3 number, since 3×12055555205312³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 12055555205312.

It is not an unprimeable number, because it can be changed into a prime (12055555205311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9471362 + ... + 10668542.

It is an arithmetic number, because the mean of its divisors is an integer number (445830918852).

Almost surely, 2^{12055555205312} is an apocalyptic number.

It is an amenable number.

12055555205312 is an abundant number, since it is smaller than the sum of its proper divisors (12910976250400).

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

12055555205312 is a wasteful number, since it uses less digits than its factorization.

12055555205312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204057 (or 1204047 counting only the distinct ones).

The product of its (nonzero) digits is 375000, while the sum is 41.

The spelling of 12055555205312 in words is "twelve trillion, fifty-five billion, five hundred fifty-five million, two hundred five thousand, three hundred twelve".