221332300000 has 144 divisors (see below), whose sum is σ = 622459222560. Its totient is φ = 75885120000.

The previous prime is 221332299997. The next prime is 221332300051. The reversal of 221332300000 is 3233122.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 541906 + ... + 858094.

It is an arithmetic number, because the mean of its divisors is an integer number (4322633490).

Almost surely, 2^221332300000 is an apocalyptic number.

221332300000 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 221332300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311229611280).

221332300000 is an abundant number, since it is smaller than the sum of its proper divisors (401126922560).

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

221332300000 is an frugal number, since it uses more digits than its factorization.

221332300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316231 (or 316203 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 221332300000 its reverse (3233122), we get a palindrome (221335533122).

The spelling of 221332300000 in words is "two hundred twenty-one billion, three hundred thirty-two million, three hundred thousand".