221867005000 has 40 divisors (see below), whose sum is σ = 519834404430. Its totient is φ = 88746800000.

The previous prime is 221867004973. The next prime is 221867005039. The reversal of 221867005000 is 500768122.

221867005000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 15291300964 + 206575704036 = 123658^2 + 454506^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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 9 ways as a sum of consecutive naturals, for example, 22181701 + ... + 22191700.

Almost surely, 2^221867005000 is an apocalyptic number.

221867005000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221867005000 is an abundant number, since it is smaller than the sum of its proper divisors (297967399430).

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

221867005000 is an equidigital number, since it uses as much as digits as its factorization.

221867005000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44373427 (or 44373408 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The spelling of 221867005000 in words is "two hundred twenty-one billion, eight hundred sixty-seven million, five thousand".