22033020985 has 4 divisors (see below), whose sum is σ = 26439625188. Its totient is φ = 17626416784.

The previous prime is 22033020983. The next prime is 22033021001. The reversal of 22033020985 is 58902033022.

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 8071944336 + 13961076649 = 89844^2 + 118157^2 .

It is a cyclic number.

It is not a de Polignac number, because 22033020985 - 2¹ = 22033020983 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 22033020985.

It is not an unprimeable number, because it can be changed into a prime (22033020983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2203302094 + ... + 2203302103.

It is an arithmetic number, because the mean of its divisors is an integer number (6609906297).

Almost surely, 2^22033020985 is an apocalyptic number.

It is an amenable number.

22033020985 is a deficient number, since it is larger than the sum of its proper divisors (4406604203).

22033020985 is an equidigital number, since it uses as much as digits as its factorization.

22033020985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4406604202.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 22033020985 in words is "twenty-two billion, thirty-three million, twenty thousand, nine hundred eighty-five".