221669830000 has 50 divisors (see below), whose sum is σ = 536684849624. Its totient is φ = 88667928000.

The previous prime is 221669829991. The next prime is 221669830009. The reversal of 221669830000 is 38966122.

221669830000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (221669829991) and next prime (221669830009).

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221669830009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 11073492 + ... + 11093491.

Almost surely, 2^221669830000 is an apocalyptic number.

221669830000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221669830000 is an abundant number, since it is smaller than the sum of its proper divisors (315015019624).

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

221669830000 is an equidigital number, since it uses as much as digits as its factorization.

221669830000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22167011 (or 22166990 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 221669830000 in words is "two hundred twenty-one billion, six hundred sixty-nine million, eight hundred thirty thousand".