2220222985 has 8 divisors (see below), whose sum is σ = 2668302216. Its totient is φ = 1773488640.

The previous prime is 2220222971. The next prime is 2220223003. The reversal of 2220222985 is 5892220222.

It can be written as a sum of positive squares in 4 ways, for example, as 658076409 + 1562146576 = 25653^2 + 39524^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2220222985 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2220222985.

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 7 ways as a sum of consecutive naturals, for example, 332584 + ... + 339193.

It is an arithmetic number, because the mean of its divisors is an integer number (333537777).

Almost surely, 2^2220222985 is an apocalyptic number.

It is an amenable number.

2220222985 is a deficient number, since it is larger than the sum of its proper divisors (448079231).

2220222985 is an equidigital number, since it uses as much as digits as its factorization.

2220222985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672443.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 2220222985 is about 47119.2421946703. The cubic root of 2220222985 is about 1304.5644255191.

The spelling of 2220222985 in words is "two billion, two hundred twenty million, two hundred twenty-two thousand, nine hundred eighty-five".