33023000220 has 144 divisors (see below), whose sum is σ = 108513584928. Its totient is φ = 7481241600.

The previous prime is 33023000183. The next prime is 33023000233. The reversal of 33023000220 is 2200032033.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 33023000220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 282520 + ... + 381920.

It is an arithmetic number, because the mean of its divisors is an integer number (753566562).

Almost surely, 2^33023000220 is an apocalyptic number.

33023000220 is a gapful number since it is divisible by the number (30) 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 33023000220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54256792464).

33023000220 is an abundant number, since it is smaller than the sum of its proper divisors (75490584708).

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

33023000220 is a wasteful number, since it uses less digits than its factorization.

33023000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99540 (or 99531 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

Adding to 33023000220 its reverse (2200032033), we get a palindrome (35223032253).

The spelling of 33023000220 in words is "thirty-three billion, twenty-three million, two hundred twenty", and thus it is an aban number.