21220000032300 has 72 divisors (see below), whose sum is σ = 62554958632656. Its totient is φ = 5551899375360.

The previous prime is 21220000032299. The next prime is 21220000032317. The reversal of 21220000032300 is 323000002212.

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 21220000032300.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 667279699 + ... + 667311498.

It is an arithmetic number, because the mean of its divisors is an integer number (868818869898).

Almost surely, 2^{21220000032300} is an apocalyptic number.

21220000032300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21220000032300 is an abundant number, since it is smaller than the sum of its proper divisors (41334958600356).

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

21220000032300 is a wasteful number, since it uses less digits than its factorization.

21220000032300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334591267 (or 1334591260 counting only the distinct ones).

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

Adding to 21220000032300 its reverse (323000002212), we get a palindrome (21543000034512).

The spelling of 21220000032300 in words is "twenty-one trillion, two hundred twenty billion, thirty-two thousand, three hundred".