201011212271 has 2 divisors, whose sum is σ = 201011212272. Its totient is φ = 201011212270.

The previous prime is 201011212217. The next prime is 201011212273. The reversal of 201011212271 is 172212110102.

It is a happy number.

Together with previous prime (201011212217) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201011212271 is a prime.

Together with 201011212273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201011212273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100505606135 + 100505606136.

It is an arithmetic number, because the mean of its divisors is an integer number (100505606136).

Almost surely, 2^201011212271 is an apocalyptic number.

201011212271 is a deficient number, since it is larger than the sum of its proper divisors (1).

201011212271 is an equidigital number, since it uses as much as digits as its factorization.

201011212271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 201011212271 its reverse (172212110102), we get a palindrome (373223322373).

The spelling of 201011212271 in words is "two hundred one billion, eleven million, two hundred twelve thousand, two hundred seventy-one".