33221120020 has 96 divisors (see below), whose sum is σ = 78083502336. Its totient is φ = 11767526400.

The previous prime is 33221120003. The next prime is 33221120059. The reversal of 33221120020 is 2002112233.

It is a super-3 number, since 3×33221120020³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 33221119976 and 33221120003.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 6699382 + ... + 6704338.

It is an arithmetic number, because the mean of its divisors is an integer number (813369816).

Almost surely, 2^33221120020 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 33221120020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39041751168).

33221120020 is an abundant number, since it is smaller than the sum of its proper divisors (44862382316).

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

33221120020 is a wasteful number, since it uses less digits than its factorization.

33221120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5761 (or 5759 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 33221120020 its reverse (2002112233), we get a palindrome (35223232253).

The spelling of 33221120020 in words is "thirty-three billion, two hundred twenty-one million, one hundred twenty thousand, twenty".