33221222000 has 40 divisors (see below), whose sum is σ = 80328919632. Its totient is φ = 13288488000.

The previous prime is 33221221997. The next prime is 33221222029. The reversal of 33221222000 is 22212233.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×33221222000² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33221222000.

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 7 ways as a sum of consecutive naturals, for example, 8303306 + ... + 8307305.

Almost surely, 2^33221222000 is an apocalyptic number.

It is an amenable number.

33221222000 is an abundant number, since it is smaller than the sum of its proper divisors (47107697632).

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

33221222000 is a wasteful number, since it uses less digits than its factorization.

33221222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16610634 (or 16610618 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 33221222000 its reverse (22212233), we get a palindrome (33243434233).

The spelling of 33221222000 in words is "thirty-three billion, two hundred twenty-one million, two hundred twenty-two thousand".