12116922461887 has 2 divisors, whose sum is σ = 12116922461888. Its totient is φ = 12116922461886.

The previous prime is 12116922461843. The next prime is 12116922461929. The reversal of 12116922461887 is 78816422961121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12116922461887 - 2⁷ = 12116922461759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12116922464887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6058461230943 + 6058461230944.

It is an arithmetic number, because the mean of its divisors is an integer number (6058461230944).

Almost surely, 2^{12116922461887} is an apocalyptic number.

12116922461887 is a deficient number, since it is larger than the sum of its proper divisors (1).

12116922461887 is an equidigital number, since it uses as much as digits as its factorization.

12116922461887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4644864, while the sum is 58.

The spelling of 12116922461887 in words is "twelve trillion, one hundred sixteen billion, nine hundred twenty-two million, four hundred sixty-one thousand, eight hundred eighty-seven".