33112003221 has 24 divisors (see below), whose sum is σ = 52183181856. Its totient is φ = 20065307040.

The previous prime is 33112003213. The next prime is 33112003297. The reversal of 33112003221 is 12230021133.

33112003221 is a `hidden beast` number, since 331 + 12 + 0 + 0 + 322 + 1 = 666.

It is not a de Polignac number, because 33112003221 - 2³ = 33112003213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33112003194 and 33112003203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33112003021) 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 23 ways as a sum of consecutive naturals, for example, 997731 + ... + 1030383.

It is an arithmetic number, because the mean of its divisors is an integer number (2174299244).

Almost surely, 2^33112003221 is an apocalyptic number.

It is an amenable number.

33112003221 is a deficient number, since it is larger than the sum of its proper divisors (19071178635).

33112003221 is a wasteful number, since it uses less digits than its factorization.

33112003221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42913 (or 42910 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 33112003221 its reverse (12230021133), we get a palindrome (45342024354).

The spelling of 33112003221 in words is "thirty-three billion, one hundred twelve million, three thousand, two hundred twenty-one".