12216057367057 has 4 divisors (see below), whose sum is σ = 12216065413860. Its totient is φ = 12216049320256.

The previous prime is 12216057366943. The next prime is 12216057367103. The reversal of 12216057367057 is 75076375061221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4927871654161 + 7288185712896 = 2219881^2 + 2699664^2 .

It is a cyclic number.

It is not a de Polignac number, because 12216057367057 - 2¹⁵ = 12216057334289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12216057366995 and 12216057367013.

It is not an unprimeable number, because it can be changed into a prime (12216057367957) 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, 977668 + ... + 5038645.

It is an arithmetic number, because the mean of its divisors is an integer number (3054016353465).

Almost surely, 2^{12216057367057} is an apocalyptic number.

It is an amenable number.

12216057367057 is a deficient number, since it is larger than the sum of its proper divisors (8046803).

12216057367057 is an equidigital number, since it uses as much as digits as its factorization.

12216057367057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8046802.

The product of its (nonzero) digits is 3704400, while the sum is 52.

The spelling of 12216057367057 in words is "twelve trillion, two hundred sixteen billion, fifty-seven million, three hundred sixty-seven thousand, fifty-seven".