33220323220020 has 192 divisors, whose sum is σ = 95423358514176. Its totient is φ = 8631347558400.

The previous prime is 33220323219991. The next prime is 33220323220057. The reversal of 33220323220020 is 2002232302233.

It is a super-2 number, since 2×33220323220020² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 585857670 + ... + 585914370.

It is an arithmetic number, because the mean of its divisors is an integer number (496996658928).

Almost surely, 2^{33220323220020} is an apocalyptic number.

33220323220020 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 33220323220020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47711679257088).

33220323220020 is an abundant number, since it is smaller than the sum of its proper divisors (62203035294156).

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

33220323220020 is a wasteful number, since it uses less digits than its factorization.

33220323220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57690 (or 57688 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 24.

Adding to 33220323220020 its reverse (2002232302233), we get a palindrome (35222555522253).

The spelling of 33220323220020 in words is "thirty-three trillion, two hundred twenty billion, three hundred twenty-three million, two hundred twenty thousand, twenty".