33223531000 has 128 divisors (see below), whose sum is σ = 87735960000. Its totient is φ = 11664576000.

The previous prime is 33223530973. The next prime is 33223531007. The reversal of 33223531000 is 13532233.

It is a happy number.

It is a super-2 number, since 2×33223531000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33223531007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 266926 + ... + 371074.

Almost surely, 2^33223531000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33223531000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43867980000).

33223531000 is an abundant number, since it is smaller than the sum of its proper divisors (54512429000).

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

33223531000 is a wasteful number, since it uses less digits than its factorization.

33223531000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104210 (or 104196 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 22.

The spelling of 33223531000 in words is "thirty-three billion, two hundred twenty-three million, five hundred thirty-one thousand".