2012116871 has 2 divisors, whose sum is σ = 2012116872. Its totient is φ = 2012116870.

The previous prime is 2012116837. The next prime is 2012116919. The reversal of 2012116871 is 1786112102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2012116871 - 2³⁰ = 938375047 is a prime.

It is a super-2 number, since 2×2012116871² = 8097228605125661282, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012116811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006058435 + 1006058436.

It is an arithmetic number, because the mean of its divisors is an integer number (1006058436).

Almost surely, 2^2012116871 is an apocalyptic number.

2012116871 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012116871 is an equidigital number, since it uses as much as digits as its factorization.

2012116871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 29.

The square root of 2012116871 is about 44856.6257201765. The cubic root of 2012116871 is about 1262.4603122641.

Adding to 2012116871 its reverse (1786112102), we get a palindrome (3798228973).

The spelling of 2012116871 in words is "two billion, twelve million, one hundred sixteen thousand, eight hundred seventy-one".