221113310220 has 192 divisors, whose sum is σ = 761647219200. Its totient is φ = 52803083520.

The previous prime is 221113310191. The next prime is 221113310227. The reversal of 221113310220 is 22013311122.

221113310220 is a `hidden beast` number, since 2 + 2 + 111 + 331 + 0 + 220 = 666.

221113310220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 221113310193 and 221113310202.

It is not an unprimeable number, because it can be changed into a prime (221113310227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 120186 + ... + 675774.

It is an arithmetic number, because the mean of its divisors is an integer number (3966912600).

Almost surely, 2^221113310220 is an apocalyptic number.

221113310220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221113310220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380823609600).

221113310220 is an abundant number, since it is smaller than the sum of its proper divisors (540533908980).

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

221113310220 is a wasteful number, since it uses less digits than its factorization.

221113310220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555685 (or 555677 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 221113310220 its reverse (22013311122), we get a palindrome (243126621342).

The spelling of 221113310220 in words is "two hundred twenty-one billion, one hundred thirteen million, three hundred ten thousand, two hundred twenty".