33221103220 has 12 divisors (see below), whose sum is σ = 69764316804. Its totient is φ = 13288441280.

The previous prime is 33221103217. The next prime is 33221103241. The reversal of 33221103220 is 2230112233.

It can be written as a sum of positive squares in 2 ways, for example, as 4167218916 + 29053884304 = 64554^2 + 170452^2 .

It is a super-2 number, since 2×33221103220² (a number of 22 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 830527561 + ... + 830527600.

It is an arithmetic number, because the mean of its divisors is an integer number (5813693067).

Almost surely, 2^33221103220 is an apocalyptic number.

It is an amenable number.

33221103220 is an abundant number, since it is smaller than the sum of its proper divisors (36543213584).

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

33221103220 is a wasteful number, since it uses less digits than its factorization.

33221103220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661055170 (or 1661055168 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 33221103220 its reverse (2230112233), we get a palindrome (35451215453).

The spelling of 33221103220 in words is "thirty-three billion, two hundred twenty-one million, one hundred three thousand, two hundred twenty".