221530061008 has 20 divisors (see below), whose sum is σ = 432490943808. Its totient is φ = 109919494880.

The previous prime is 221530060933. The next prime is 221530061033. The reversal of 221530061008 is 800160035122.

221530061008 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 52843816 + ... + 52848007.

Almost surely, 2^221530061008 is an apocalyptic number.

It is an amenable number.

221530061008 is a deficient number, since it is larger than the sum of its proper divisors (210960882800).

221530061008 is a wasteful number, since it uses less digits than its factorization.

221530061008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105691962 (or 105691956 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 221530061008 in words is "two hundred twenty-one billion, five hundred thirty million, sixty-one thousand, eight".