33021333020 has 48 divisors (see below), whose sum is σ = 76697388768. Its totient is φ = 11862961920.

The previous prime is 33021333017. The next prime is 33021333041. The reversal of 33021333020 is 2033312033.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 33021332983 and 33021333001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1706666 + ... + 1725905.

It is an arithmetic number, because the mean of its divisors is an integer number (1597862266).

Almost surely, 2^33021333020 is an apocalyptic number.

It is an amenable number.

33021333020 is an abundant number, since it is smaller than the sum of its proper divisors (43676055748).

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

33021333020 is a wasteful number, since it uses less digits than its factorization.

33021333020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432630 (or 3432628 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 33021333020 its reverse (2033312033), we get a palindrome (35054645053).

The spelling of 33021333020 in words is "thirty-three billion, twenty-one million, three hundred thirty-three thousand, twenty".