221300030144 has 28 divisors (see below), whose sum is σ = 464974146504. Its totient is φ = 104141190144.

The previous prime is 221300030123. The next prime is 221300030173. The reversal of 221300030144 is 441030003122.

221300030144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101699294 + ... + 101701469.

It is an arithmetic number, because the mean of its divisors is an integer number (16606219518).

Almost surely, 2^221300030144 is an apocalyptic number.

It is an amenable number.

221300030144 is an abundant number, since it is smaller than the sum of its proper divisors (243674116360).

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

221300030144 is a wasteful number, since it uses less digits than its factorization.

221300030144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203400792 (or 203400782 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 221300030144 its reverse (441030003122), we get a palindrome (662330033266).

The spelling of 221300030144 in words is "two hundred twenty-one billion, three hundred million, thirty thousand, one hundred forty-four".