2271227969 has 4 divisors (see below), whose sum is σ = 2278393044. Its totient is φ = 2264062896.

The previous prime is 2271227963. The next prime is 2271227977. The reversal of 2271227969 is 9697221722.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 629357569 + 1641870400 = 25087^2 + 40520^2 .

It is a cyclic number.

It is not a de Polignac number, because 2271227969 - 2²⁴ = 2254450753 is a prime.

It is a super-2 number, since 2×2271227969² = 10316952974335729922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2271227963) 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, 3582062 + ... + 3582695.

It is an arithmetic number, because the mean of its divisors is an integer number (569598261).

Almost surely, 2^2271227969 is an apocalyptic number.

It is an amenable number.

2271227969 is a deficient number, since it is larger than the sum of its proper divisors (7165075).

2271227969 is an equidigital number, since it uses as much as digits as its factorization.

2271227969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7165074.

The product of its digits is 381024, while the sum is 47.

The square root of 2271227969 is about 47657.4020378786. The cubic root of 2271227969 is about 1314.4787688814.

The spelling of 2271227969 in words is "two billion, two hundred seventy-one million, two hundred twenty-seven thousand, nine hundred sixty-nine".