8028221271 has 16 divisors (see below), whose sum is σ = 12236427264. Its totient is φ = 4586449824.

The previous prime is 8028221263. The next prime is 8028221291. The reversal of 8028221271 is 1721228208.

It is not a de Polignac number, because 8028221271 - 2³ = 8028221263 is a prime.

It is a super-2 number, since 2×8028221271² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8028221251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47626 + ... + 135368.

It is an arithmetic number, because the mean of its divisors is an integer number (764776704).

Almost surely, 2^8028221271 is an apocalyptic number.

8028221271 is a deficient number, since it is larger than the sum of its proper divisors (4208205993).

8028221271 is a wasteful number, since it uses less digits than its factorization.

8028221271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92110.

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 8028221271 is about 89600.3419134101. The cubic root of 8028221271 is about 2002.3490125732.

Adding to 8028221271 its reverse (1721228208), we get a palindrome (9749449479).

The spelling of 8028221271 in words is "eight billion, twenty-eight million, two hundred twenty-one thousand, two hundred seventy-one".