20333221010000 has 200 divisors, whose sum is σ = 49656102460800. Its totient is φ = 8062984512000.

The previous prime is 20333221009909. The next prime is 20333221010009. The reversal of 20333221010000 is 1012233302.

It is a tau number, because it is divible by the number of its divisors (200).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20333221010009) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 551211557 + ... + 551248443.

It is an arithmetic number, because the mean of its divisors is an integer number (248280512304).

Almost surely, 2^{20333221010000} is an apocalyptic number.

20333221010000 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 20333221010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24828051230400).

20333221010000 is an abundant number, since it is smaller than the sum of its proper divisors (29322881450800).

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

20333221010000 is a wasteful number, since it uses less digits than its factorization.

20333221010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37391 (or 37370 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20333221010000 its reverse (1012233302), we get a palindrome (20334233243302).

The spelling of 20333221010000 in words is "twenty trillion, three hundred thirty-three billion, two hundred twenty-one million, ten thousand".