220147271 has 2 divisors, whose sum is σ = 220147272. Its totient is φ = 220147270.

The previous prime is 220147253. The next prime is 220147273. The reversal of 220147271 is 172741022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220147271 - 2¹⁴ = 220130887 is a prime.

Together with 220147273, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220147271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220147273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110073635 + 110073636.

It is an arithmetic number, because the mean of its divisors is an integer number (110073636).

Almost surely, 2^220147271 is an apocalyptic number.

220147271 is a deficient number, since it is larger than the sum of its proper divisors (1).

220147271 is an equidigital number, since it uses as much as digits as its factorization.

220147271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 220147271 is about 14837.3606480398. The cubic root of 220147271 is about 603.8157477476.

Adding to 220147271 its reverse (172741022), we get a palindrome (392888293).

The spelling of 220147271 in words is "two hundred twenty million, one hundred forty-seven thousand, two hundred seventy-one".