12055227707521 has 16 divisors (see below), whose sum is σ = 12551761202688. Its totient is φ = 11568970670400.

The previous prime is 12055227707483. The next prime is 12055227707581. The reversal of 12055227707521 is 12570772255021.

It is a cyclic number.

It is not a de Polignac number, because 12055227707521 - 2⁴¹ = 9856204451969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12055227707581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2545156 + ... + 5530666.

It is an arithmetic number, because the mean of its divisors is an integer number (784485075168).

Almost surely, 2^{12055227707521} is an apocalyptic number.

It is an amenable number.

12055227707521 is a deficient number, since it is larger than the sum of its proper divisors (496533495167).

12055227707521 is a wasteful number, since it uses less digits than its factorization.

12055227707521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2987232.

The product of its (nonzero) digits is 686000, while the sum is 46.

The spelling of 12055227707521 in words is "twelve trillion, fifty-five billion, two hundred twenty-seven million, seven hundred seven thousand, five hundred twenty-one".