1220302205 has 16 divisors (see below), whose sum is σ = 1486957824. Its totient is φ = 961215360.

The previous prime is 1220302201. The next prime is 1220302207. The reversal of 1220302205 is 5022030221.

It is not a de Polignac number, because 1220302205 - 2² = 1220302201 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 (1220302201) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 336512 + ... + 340118.

It is an arithmetic number, because the mean of its divisors is an integer number (92934864).

Almost surely, 2^1220302205 is an apocalyptic number.

It is an amenable number.

1220302205 is a deficient number, since it is larger than the sum of its proper divisors (266655619).

1220302205 is an equidigital number, since it uses as much as digits as its factorization.

1220302205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1220302205 is about 34932.8241772691. The cubic root of 1220302205 is about 1068.6179510144.

Adding to 1220302205 its reverse (5022030221), we get a palindrome (6242332426).

The spelling of 1220302205 in words is "one billion, two hundred twenty million, three hundred two thousand, two hundred five".