33112002221 has 8 divisors (see below), whose sum is σ = 34856421600. Its totient is φ = 31367751120.

The previous prime is 33112002199. The next prime is 33112002271. The reversal of 33112002221 is 12220021133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33112002221 - 2²² = 33107807917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33112002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33112002271) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 678095 + ... + 725283.

It is an arithmetic number, because the mean of its divisors is an integer number (4357052700).

Almost surely, 2^33112002221 is an apocalyptic number.

It is an amenable number.

33112002221 is a deficient number, since it is larger than the sum of its proper divisors (1744419379).

33112002221 is a wasteful number, since it uses less digits than its factorization.

33112002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84139.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 33112002221 its reverse (12220021133), we get a palindrome (45332023354).

The spelling of 33112002221 in words is "thirty-three billion, one hundred twelve million, two thousand, two hundred twenty-one".