221323020208 has 20 divisors (see below), whose sum is σ = 429836785560. Its totient is φ = 110397398144.

The previous prime is 221323020203. The next prime is 221323020239. The reversal of 221323020208 is 802020323122.

It is a happy number.

221323020208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (221323020203) 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 3 ways as a sum of consecutive naturals, for example, 16500085 + ... + 16513492.

It is an arithmetic number, because the mean of its divisors is an integer number (21491839278).

Almost surely, 2^221323020208 is an apocalyptic number.

It is an amenable number.

221323020208 is a deficient number, since it is larger than the sum of its proper divisors (208513765352).

221323020208 is a wasteful number, since it uses less digits than its factorization.

221323020208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33014004 (or 33013998 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 221323020208 in words is "two hundred twenty-one billion, three hundred twenty-three million, twenty thousand, two hundred eight".