33103031221 has 8 divisors (see below), whose sum is σ = 37199393280. Its totient is φ = 29228094192.

The previous prime is 33103031209. The next prime is 33103031237. The reversal of 33103031221 is 12213030133.

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

It is not a de Polignac number, because 33103031221 - 2⁵ = 33103031189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33103031821) 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, 55355941 + ... + 55356538.

It is an arithmetic number, because the mean of its divisors is an integer number (4649924160).

Almost surely, 2^33103031221 is an apocalyptic number.

It is an amenable number.

33103031221 is a deficient number, since it is larger than the sum of its proper divisors (4096362059).

33103031221 is a wasteful number, since it uses less digits than its factorization.

33103031221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110712515.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 33103031221 its reverse (12213030133), we get a palindrome (45316061354).

The spelling of 33103031221 in words is "thirty-three billion, one hundred three million, thirty-one thousand, two hundred twenty-one".