1222475305 has 4 divisors (see below), whose sum is σ = 1466970372. Its totient is φ = 977980240.

The previous prime is 1222475281. The next prime is 1222475327. The reversal of 1222475305 is 5035742221.

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 834227689 + 388247616 = 28883^2 + 19704^2 .

It is not a de Polignac number, because 1222475305 - 2²¹ = 1220378153 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122247526 + ... + 122247535.

It is an arithmetic number, because the mean of its divisors is an integer number (366742593).

Almost surely, 2^1222475305 is an apocalyptic number.

It is an amenable number.

1222475305 is a deficient number, since it is larger than the sum of its proper divisors (244495067).

1222475305 is an equidigital number, since it uses as much as digits as its factorization.

1222475305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244495066.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 1222475305 is about 34963.9143260591. The cubic root of 1222475305 is about 1069.2519023326.

The spelling of 1222475305 in words is "one billion, two hundred twenty-two million, four hundred seventy-five thousand, three hundred five".