2022801985 has 4 divisors (see below), whose sum is σ = 2427362388. Its totient is φ = 1618241584.

The previous prime is 2022801971. The next prime is 2022802009. The reversal of 2022801985 is 5891082202.

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 1269354384 + 753447601 = 35628^2 + 27449^2 .

It is a cyclic number.

It is not a de Polignac number, because 2022801985 - 2¹⁷ = 2022670913 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202280194 + ... + 202280203.

It is an arithmetic number, because the mean of its divisors is an integer number (606840597).

Almost surely, 2^2022801985 is an apocalyptic number.

It is an amenable number.

2022801985 is a deficient number, since it is larger than the sum of its proper divisors (404560403).

2022801985 is an equidigital number, since it uses as much as digits as its factorization.

2022801985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404560402.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 2022801985 is about 44975.5709802555. The cubic root of 2022801985 is about 1264.6910846657.

The spelling of 2022801985 in words is "two billion, twenty-two million, eight hundred one thousand, nine hundred eighty-five".