221568030 has 48 divisors (see below), whose sum is σ = 577465200. Its totient is φ = 58942464.

The previous prime is 221568007. The next prime is 221568047. The reversal of 221568030 is 30865122.

221568030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221567985 and 221568003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37669 + ... + 43151.

It is an arithmetic number, because the mean of its divisors is an integer number (12030525).

Almost surely, 2^221568030 is an apocalyptic number.

221568030 is an abundant number, since it is smaller than the sum of its proper divisors (355897170).

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

221568030 is a wasteful number, since it uses less digits than its factorization.

221568030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5945 (or 5942 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 221568030 is about 14885.1614032230. The cubic root of 221568030 is about 605.1119069909. Note that the first 3 decimals are identical.

The spelling of 221568030 in words is "two hundred twenty-one million, five hundred sixty-eight thousand, thirty".