22227327565 has 4 divisors (see below), whose sum is σ = 26672793084. Its totient is φ = 17781862048.

The previous prime is 22227327539. The next prime is 22227327601. The reversal of 22227327565 is 56572372222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56572372222 = 2 ⋅28286186111.

It can be written as a sum of positive squares in 2 ways, for example, as 10390540356 + 11836787209 = 101934^2 + 108797^2 .

It is a cyclic number.

It is not a de Polignac number, because 22227327565 - 2¹¹ = 22227325517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2222732752 + ... + 2222732761.

It is an arithmetic number, because the mean of its divisors is an integer number (6668198271).

Almost surely, 2^22227327565 is an apocalyptic number.

It is an amenable number.

22227327565 is a deficient number, since it is larger than the sum of its proper divisors (4445465519).

22227327565 is an equidigital number, since it uses as much as digits as its factorization.

22227327565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4445465518.

The product of its digits is 705600, while the sum is 43.

Adding to 22227327565 its reverse (56572372222), we get a palindrome (78799699787).

The spelling of 22227327565 in words is "twenty-two billion, two hundred twenty-seven million, three hundred twenty-seven thousand, five hundred sixty-five".