8222042291 has 4 divisors (see below), whose sum is σ = 8361399000. Its totient is φ = 8082685584.

The previous prime is 8222042287. The next prime is 8222042303. The reversal of 8222042291 is 1922402228.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8222042291 - 2² = 8222042287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8222042201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69678266 + ... + 69678383.

It is an arithmetic number, because the mean of its divisors is an integer number (2090349750).

Almost surely, 2^8222042291 is an apocalyptic number.

8222042291 is a deficient number, since it is larger than the sum of its proper divisors (139356709).

8222042291 is a wasteful number, since it uses less digits than its factorization.

8222042291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139356708.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 8222042291 is about 90675.4778923166. The cubic root of 8222042291 is about 2018.3349258599.

The spelling of 8222042291 in words is "eight billion, two hundred twenty-two million, forty-two thousand, two hundred ninety-one".