12051221306287 has 2 divisors, whose sum is σ = 12051221306288. Its totient is φ = 12051221306286.

The previous prime is 12051221306251. The next prime is 12051221306321. The reversal of 12051221306287 is 78260312215021.

It is a strong prime.

It is an emirp because it is prime and its reverse (78260312215021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12051221306287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12051221306087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6025610653143 + 6025610653144.

It is an arithmetic number, because the mean of its divisors is an integer number (6025610653144).

Almost surely, 2^{12051221306287} is an apocalyptic number.

12051221306287 is a deficient number, since it is larger than the sum of its proper divisors (1).

12051221306287 is an equidigital number, since it uses as much as digits as its factorization.

12051221306287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 12051221306287 in words is "twelve trillion, fifty-one billion, two hundred twenty-one million, three hundred six thousand, two hundred eighty-seven".