22021203300 has 144 divisors (see below), whose sum is σ = 71013579840. Its totient is φ = 5235978240.

The previous prime is 22021203299. The next prime is 22021203353. The reversal of 22021203300 is 330212022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22021203300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16729 + ... + 210528.

It is an arithmetic number, because the mean of its divisors is an integer number (493149860).

Almost surely, 2^22021203300 is an apocalyptic number.

22021203300 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 22021203300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35506789920).

22021203300 is an abundant number, since it is smaller than the sum of its proper divisors (48992376540).

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

22021203300 is a wasteful number, since it uses less digits than its factorization.

22021203300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227310 (or 227303 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 22021203300 its reverse (330212022), we get a palindrome (22351415322).

The spelling of 22021203300 in words is "twenty-two billion, twenty-one million, two hundred three thousand, three hundred".