2266065221 has 12 divisors (see below), whose sum is σ = 2638500588. Its totient is φ = 1940524992.

The previous prime is 2266065103. The next prime is 2266065227. The reversal of 2266065221 is 1225606622.

It can be written as a sum of positive squares in 2 ways, for example, as 534256996 + 1731808225 = 23114^2 + 41615^2 .

It is not a de Polignac number, because 2266065221 - 2²² = 2261870917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2266065227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32675 + ... + 74831.

It is an arithmetic number, because the mean of its divisors is an integer number (219875049).

Almost surely, 2^2266065221 is an apocalyptic number.

It is an amenable number.

2266065221 is a deficient number, since it is larger than the sum of its proper divisors (372435367).

2266065221 is a wasteful number, since it uses less digits than its factorization.

2266065221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43268 (or 43261 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 2266065221 is about 47603.2059949748. The cubic root of 2266065221 is about 1313.4820289023.

The spelling of 2266065221 in words is "two billion, two hundred sixty-six million, sixty-five thousand, two hundred twenty-one".