22214305 has 4 divisors (see below), whose sum is σ = 26657172. Its totient is φ = 17771440.

The previous prime is 22214279. The next prime is 22214317. The reversal of 22214305 is 50341222.

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 8196769 + 14017536 = 2863^2 + 3744^2 .

It is not a de Polignac number, because 22214305 - 2⁷ = 22214177 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, 2221426 + ... + 2221435.

It is an arithmetic number, because the mean of its divisors is an integer number (6664293).

Almost surely, 2^22214305 is an apocalyptic number.

It is an amenable number.

22214305 is a deficient number, since it is larger than the sum of its proper divisors (4442867).

22214305 is an equidigital number, since it uses as much as digits as its factorization.

22214305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442866.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 22214305 is about 4713.2053848734. The cubic root of 22214305 is about 281.1108295821.

Adding to 22214305 its reverse (50341222), we get a palindrome (72555527).

The spelling of 22214305 in words is "twenty-two million, two hundred fourteen thousand, three hundred five".