33102220 has 48 divisors (see below), whose sum is σ = 71322048. Its totient is φ = 12902400.

The previous prime is 33102197. The next prime is 33102233. The reversal of 33102220 is 2220133.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 33102220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219145 + ... + 219295.

It is an arithmetic number, because the mean of its divisors is an integer number (1485876).

Almost surely, 2^33102220 is an apocalyptic number.

It is an amenable number.

33102220 is an abundant number, since it is smaller than the sum of its proper divisors (38219828).

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

33102220 is a wasteful number, since it uses less digits than its factorization.

33102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 33102220 is about 5753.4528763170. The cubic root of 33102220 is about 321.0842776483.

Adding to 33102220 its reverse (2220133), we get a palindrome (35322353).

The spelling of 33102220 in words is "thirty-three million, one hundred two thousand, two hundred twenty".