220000871 has 2 divisors, whose sum is σ = 220000872. Its totient is φ = 220000870.

The previous prime is 220000841. The next prime is 220000889. The reversal of 220000871 is 178000022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220000871 - 2¹⁰ = 219999847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220000811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110000435 + 110000436.

It is an arithmetic number, because the mean of its divisors is an integer number (110000436).

Almost surely, 2^220000871 is an apocalyptic number.

220000871 is a deficient number, since it is larger than the sum of its proper divisors (1).

220000871 is an equidigital number, since it uses as much as digits as its factorization.

220000871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 220000871 is about 14832.4263355663. The cubic root of 220000871 is about 603.6818703548.

Adding to 220000871 its reverse (178000022), we get a palindrome (398000893).

The spelling of 220000871 in words is "two hundred twenty million, eight hundred seventy-one", and thus it is an aban number.