33222300 has 144 divisors (see below), whose sum is σ = 102514272. Its totient is φ = 8294400.

The previous prime is 33222289. The next prime is 33222331. The reversal of 33222300 is 322233.

It is a super-2 number, since 2×33222300² = 2207442434580000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 33222300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 455064 + ... + 455136.

Almost surely, 2^33222300 is an apocalyptic number.

33222300 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 33222300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51257136).

33222300 is an abundant number, since it is smaller than the sum of its proper divisors (69291972).

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

33222300 is a wasteful number, since it uses less digits than its factorization.

33222300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 33222300 is about 5763.8789022671. The cubic root of 33222300 is about 321.4720590191.

Adding to 33222300 its reverse (322233), we get a palindrome (33544533).

The spelling of 33222300 in words is "thirty-three million, two hundred twenty-two thousand, three hundred".