221000303300 has 144 divisors (see below), whose sum is σ = 565556802048. Its totient is φ = 73382553600.

The previous prime is 221000303273. The next prime is 221000303317. The reversal of 221000303300 is 3303000122.

221000303300 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221000303300² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3903797 + ... + 3960003.

It is an arithmetic number, because the mean of its divisors is an integer number (3927477792).

Almost surely, 2^221000303300 is an apocalyptic number.

221000303300 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 221000303300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282778401024).

221000303300 is an abundant number, since it is smaller than the sum of its proper divisors (344556498748).

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

221000303300 is a wasteful number, since it uses less digits than its factorization.

221000303300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56406 (or 56399 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 221000303300 its reverse (3303000122), we get a palindrome (224303303422).

The spelling of 221000303300 in words is "two hundred twenty-one billion, three hundred three thousand, three hundred".