102211271 has 2 divisors, whose sum is σ = 102211272. Its totient is φ = 102211270.

The previous prime is 102211253. The next prime is 102211297. The reversal of 102211271 is 172112201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102211271 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102211231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51105635 + 51105636.

It is an arithmetic number, because the mean of its divisors is an integer number (51105636).

Almost surely, 2^102211271 is an apocalyptic number.

102211271 is a deficient number, since it is larger than the sum of its proper divisors (1).

102211271 is an equidigital number, since it uses as much as digits as its factorization.

102211271 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 17.

The square root of 102211271 is about 10109.9590009060. The cubic root of 102211271 is about 467.5552410726. Note that the first 3 decimals are identical.

Adding to 102211271 its reverse (172112201), we get a palindrome (274323472).

The spelling of 102211271 in words is "one hundred two million, two hundred eleven thousand, two hundred seventy-one".