28485220222 has 8 divisors (see below), whose sum is σ = 42753436200. Its totient is φ = 14234074824.

The previous prime is 28485220207. The next prime is 28485220241. The reversal of 28485220222 is 22202258482.

It is a happy number.

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

It is a super-2 number, since 2×28485220222² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4263472 + ... + 4270147.

It is an arithmetic number, because the mean of its divisors is an integer number (5344179525).

Almost surely, 2^28485220222 is an apocalyptic number.

28485220222 is a deficient number, since it is larger than the sum of its proper divisors (14268215978).

28485220222 is a wasteful number, since it uses less digits than its factorization.

28485220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8535290.

The product of its (nonzero) digits is 81920, while the sum is 37.

The spelling of 28485220222 in words is "twenty-eight billion, four hundred eighty-five million, two hundred twenty thousand, two hundred twenty-two".