8067208221 has 24 divisors (see below), whose sum is σ = 11949612480. Its totient is φ = 5242776000.

The previous prime is 8067208217. The next prime is 8067208223. The reversal of 8067208221 is 1228027608.

It is a happy number.

It is not a de Polignac number, because 8067208221 - 2² = 8067208217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8067208223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14055 + ... + 127796.

It is an arithmetic number, because the mean of its divisors is an integer number (497900520).

Almost surely, 2^8067208221 is an apocalyptic number.

It is an amenable number.

8067208221 is a deficient number, since it is larger than the sum of its proper divisors (3882404259).

8067208221 is a wasteful number, since it uses less digits than its factorization.

8067208221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142017 (or 142014 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 8067208221 is about 89817.6386964164. The cubic root of 8067208221 is about 2005.5850740394.

It can be divided in two parts, 806 and 7208221, that added together give a palindrome (7209027).

The spelling of 8067208221 in words is "eight billion, sixty-seven million, two hundred eight thousand, two hundred twenty-one".