20333221101312 has 432 divisors, whose sum is σ = 65946832019712. Its totient is φ = 5446939115520.

The previous prime is 20333221101289. The next prime is 20333221101419. The reversal of 20333221101312 is 21310112233302.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 188197387 + ... + 188305397.

Almost surely, 2^{20333221101312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20333221101312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32973416009856).

20333221101312 is an abundant number, since it is smaller than the sum of its proper divisors (45613610918400).

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

20333221101312 is a wasteful number, since it uses less digits than its factorization.

20333221101312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108172 (or 108139 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 20333221101312 its reverse (21310112233302), we get a palindrome (41643333334614).

The spelling of 20333221101312 in words is "twenty trillion, three hundred thirty-three billion, two hundred twenty-one million, one hundred one thousand, three hundred twelve".