33021222200220 has 192 divisors, whose sum is σ = 95444402651136. Its totient is φ = 8524913940480.

The previous prime is 33021222200191. The next prime is 33021222200243. The reversal of 33021222200220 is 2200222212033.

It is a super-2 number, since 2×33021222200220² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 185520507 + ... + 185698413.

It is an arithmetic number, because the mean of its divisors is an integer number (497106263808).

Almost surely, 2^{33021222200220} is an apocalyptic number.

33021222200220 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 33021222200220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47722201325568).

33021222200220 is an abundant number, since it is smaller than the sum of its proper divisors (62423180450916).

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

33021222200220 is a wasteful number, since it uses less digits than its factorization.

33021222200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178540 (or 178538 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 33021222200220 its reverse (2200222212033), we get a palindrome (35221444412253).

The spelling of 33021222200220 in words is "thirty-three trillion, twenty-one billion, two hundred twenty-two million, two hundred thousand, two hundred twenty".