221323221300 has 36 divisors (see below), whose sum is σ = 640361854496. Its totient is φ = 59019525600.

The previous prime is 221323221233. The next prime is 221323221307. The reversal of 221323221300 is 3122323122.

It is a happy number.

221323221300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221323221307) 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 11 ways as a sum of consecutive naturals, for example, 368871736 + ... + 368872335.

Almost surely, 2^221323221300 is an apocalyptic number.

221323221300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221323221300 is an abundant number, since it is smaller than the sum of its proper divisors (419038633196).

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

221323221300 is a wasteful number, since it uses less digits than its factorization.

221323221300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737744088 (or 737744081 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 221323221300 its reverse (3122323122), we get a palindrome (224445544422).

The spelling of 221323221300 in words is "two hundred twenty-one billion, three hundred twenty-three million, two hundred twenty-one thousand, three hundred".