33224421000 has 128 divisors (see below), whose sum is σ = 103728792960. Its totient is φ = 8853984000.

The previous prime is 33224420993. The next prime is 33224421029. The reversal of 33224421000 is 12442233.

It is a super-2 number, since 2×33224421000² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6390402 + ... + 6395598.

It is an arithmetic number, because the mean of its divisors is an integer number (810381195).

Almost surely, 2^33224421000 is an apocalyptic number.

33224421000 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 33224421000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51864396480).

33224421000 is an abundant number, since it is smaller than the sum of its proper divisors (70504371960).

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

33224421000 is a wasteful number, since it uses less digits than its factorization.

33224421000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7352 (or 7338 counting only the distinct ones).

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

Adding to 33224421000 its reverse (12442233), we get a palindrome (33236863233).

The spelling of 33224421000 in words is "thirty-three billion, two hundred twenty-four million, four hundred twenty-one thousand".