2011200112171 has 2 divisors, whose sum is σ = 2011200112172. Its totient is φ = 2011200112170.

The previous prime is 2011200112073. The next prime is 2011200112247. The reversal of 2011200112171 is 1712110021102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2011200112171 - 2¹¹ = 2011200110123 is a prime.

It is not a weakly prime, because it can be changed into another prime (2011200118171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005600056085 + 1005600056086.

It is an arithmetic number, because the mean of its divisors is an integer number (1005600056086).

Almost surely, 2^{2011200112171} is an apocalyptic number.

2011200112171 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011200112171 is an equidigital number, since it uses as much as digits as its factorization.

2011200112171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 19.

Adding to 2011200112171 its reverse (1712110021102), we get a palindrome (3723310133273).

The spelling of 2011200112171 in words is "two trillion, eleven billion, two hundred million, one hundred twelve thousand, one hundred seventy-one".