33222252 has 48 divisors (see below), whose sum is σ = 88901120. Its totient is φ = 9459072.

The previous prime is 33222239. The next prime is 33222253. The reversal of 33222252 is 25222233.

It is a super-2 number, since 2×33222252² = 2207436055903008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (33222253) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 33873 + ... + 34839.

Almost surely, 2^33222252 is an apocalyptic number.

It is an amenable number.

33222252 is an abundant number, since it is smaller than the sum of its proper divisors (55678868).

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

33222252 is a wasteful number, since it uses less digits than its factorization.

33222252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390 (or 1388 counting only the distinct ones).

The product of its digits is 1440, while the sum is 21.

The square root of 33222252 is about 5763.8747384030. The cubic root of 33222252 is about 321.4719041967.

Adding to 33222252 its reverse (25222233), we get a palindrome (58444485).

The spelling of 33222252 in words is "thirty-three million, two hundred twenty-two thousand, two hundred fifty-two".