221030444130 has 64 divisors (see below), whose sum is σ = 582670679040. Its totient is φ = 53411472576.

The previous prime is 221030444101. The next prime is 221030444143. The reversal of 221030444130 is 31444030122.

It is a super-3 number, since 3×221030444130³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221030444130.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8416732 + ... + 8442951.

It is an arithmetic number, because the mean of its divisors is an integer number (9104229360).

Almost surely, 2^221030444130 is an apocalyptic number.

221030444130 is an abundant number, since it is smaller than the sum of its proper divisors (361640234910).

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

221030444130 is a wasteful number, since it uses less digits than its factorization.

221030444130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16859735.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 221030444130 its reverse (31444030122), we get a palindrome (252474474252).

The spelling of 221030444130 in words is "two hundred twenty-one billion, thirty million, four hundred forty-four thousand, one hundred thirty".