2221788985 has 8 divisors (see below), whose sum is σ = 2871235080. Its totient is φ = 1640705664.

The previous prime is 2221788971. The next prime is 2221789027. The reversal of 2221788985 is 5898871222.

It can be written as a sum of positive squares in 4 ways, for example, as 75968656 + 2145820329 = 8716^2 + 46323^2 .

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

It is not a de Polignac number, because 2221788985 - 2¹³ = 2221780793 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 17090620 + ... + 17090749.

It is an arithmetic number, because the mean of its divisors is an integer number (358904385).

Almost surely, 2^2221788985 is an apocalyptic number.

It is an amenable number.

2221788985 is a deficient number, since it is larger than the sum of its proper divisors (649446095).

2221788985 is a wasteful number, since it uses less digits than its factorization.

2221788985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34181387.

The product of its digits is 1290240, while the sum is 52.

The square root of 2221788985 is about 47135.8566804508. The cubic root of 2221788985 is about 1304.8710715589.

The spelling of 2221788985 in words is "two billion, two hundred twenty-one million, seven hundred eighty-eight thousand, nine hundred eighty-five".