222005000 has 80 divisors (see below), whose sum is σ = 594559680. Its totient is φ = 76104000.

The previous prime is 222004999. The next prime is 222005027. The reversal of 222005000 is 500222.

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 19 ways as a sum of consecutive naturals, for example, 31829 + ... + 38171.

It is an arithmetic number, because the mean of its divisors is an integer number (7431996).

Almost surely, 2^222005000 is an apocalyptic number.

222005000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222005000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297279840).

222005000 is an abundant number, since it is smaller than the sum of its proper divisors (372554680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222005000 is an equidigital number, since it uses as much as digits as its factorization.

222005000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6376 (or 6357 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 222005000 is about 14899.8322138204. The cubic root of 222005000 is about 605.5094404495.

Adding to 222005000 its reverse (500222), we get a palindrome (222505222).

The spelling of 222005000 in words is "two hundred twenty-two million, five thousand".