201101222002171 has 2 divisors, whose sum is σ = 201101222002172. Its totient is φ = 201101222002170.

The previous prime is 201101222002159. The next prime is 201101222002253. The reversal of 201101222002171 is 171200222101102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201101222002171 is a prime.

It is not a weakly prime, because it can be changed into another prime (201101222002271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100550611001085 + 100550611001086.

It is an arithmetic number, because the mean of its divisors is an integer number (100550611001086).

Almost surely, 2^{201101222002171} is an apocalyptic number.

201101222002171 is a deficient number, since it is larger than the sum of its proper divisors (1).

201101222002171 is an equidigital number, since it uses as much as digits as its factorization.

201101222002171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 201101222002171 its reverse (171200222101102), we get a palindrome (372301444103273).

The spelling of 201101222002171 in words is "two hundred one trillion, one hundred one billion, two hundred twenty-two million, two thousand, one hundred seventy-one".