221300310220 has 48 divisors (see below), whose sum is σ = 524460938400. Its totient is φ = 77697912320.

The previous prime is 221300310199. The next prime is 221300310223. The reversal of 221300310220 is 22013003122.

It is a junction number, because it is equal to n+sod(n) for n = 221300310194 and 221300310203.

It is not an unprimeable number, because it can be changed into a prime (221300310223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17336905 + ... + 17349664.

It is an arithmetic number, because the mean of its divisors is an integer number (10926269550).

Almost surely, 2^221300310220 is an apocalyptic number.

221300310220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221300310220 is an abundant number, since it is smaller than the sum of its proper divisors (303160628180).

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

221300310220 is a wasteful number, since it uses less digits than its factorization.

221300310220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34686618 (or 34686616 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 221300310220 its reverse (22013003122), we get a palindrome (243313313342).

It can be divided in two parts, 2213003102 and 20, that added together give a palindrome (2213003122).

The spelling of 221300310220 in words is "two hundred twenty-one billion, three hundred million, three hundred ten thousand, two hundred twenty".