2222240305 has 4 divisors (see below), whose sum is σ = 2666688372. Its totient is φ = 1777792240.

The previous prime is 2222240299. The next prime is 2222240359. The reversal of 2222240305 is 5030422222.

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 1653560896 + 568679409 = 40664^2 + 23847^2 .

It is not a de Polignac number, because 2222240305 - 2¹³ = 2222232113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 222224026 + ... + 222224035.

It is an arithmetic number, because the mean of its divisors is an integer number (666672093).

Almost surely, 2^2222240305 is an apocalyptic number.

It is an amenable number.

2222240305 is a deficient number, since it is larger than the sum of its proper divisors (444448067).

2222240305 is an equidigital number, since it uses as much as digits as its factorization.

2222240305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444448066.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 2222240305 is about 47140.6438755348. The cubic root of 2222240305 is about 1304.9594199641.

Adding to 2222240305 its reverse (5030422222), we get a palindrome (7252662527).

The spelling of 2222240305 in words is "two billion, two hundred twenty-two million, two hundred forty thousand, three hundred five".