33000221100 has 324 divisors, whose sum is σ = 122091034632. Its totient is φ = 6856819200.

The previous prime is 33000221069. The next prime is 33000221123. The reversal of 33000221100 is 112200033.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a zygodrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1769424 + ... + 1787976.

Almost surely, 2^33000221100 is an apocalyptic number.

33000221100 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 33000221100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61045517316).

33000221100 is an abundant number, since it is smaller than the sum of its proper divisors (89090813532).

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

33000221100 is a wasteful number, since it uses less digits than its factorization.

33000221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18606 (or 18581 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 33000221100 its reverse (112200033), we get a palindrome (33112421133).

The spelling of 33000221100 in words is "thirty-three billion, two hundred twenty-one thousand, one hundred".