21022120303300 has 144 divisors (see below), whose sum is σ = 46122646711680. Its totient is φ = 8316434903040.

The previous prime is 21022120303259. The next prime is 21022120303339. The reversal of 21022120303300 is 330302122012.

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 47 ways as a sum of consecutive naturals, for example, 3142786356 + ... + 3142793044.

It is an arithmetic number, because the mean of its divisors is an integer number (320296157720).

Almost surely, 2^{21022120303300} is an apocalyptic number.

21022120303300 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 21022120303300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23061323355840).

21022120303300 is an abundant number, since it is smaller than the sum of its proper divisors (25100526408380).

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

21022120303300 is a wasteful number, since it uses less digits than its factorization.

21022120303300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7790 (or 7783 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21022120303300 its reverse (330302122012), we get a palindrome (21352422425312).

The spelling of 21022120303300 in words is "twenty-one trillion, twenty-two billion, one hundred twenty million, three hundred three thousand, three hundred".