33031133221 has 8 divisors (see below), whose sum is σ = 34939425600. Its totient is φ = 31162187232.

The previous prime is 33031133209. The next prime is 33031133231. The reversal of 33031133221 is 12233113033.

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 33031133221 - 2¹¹ = 33031131173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33031133192 and 33031133201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33031133231) 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 7 ways as a sum of consecutive naturals, for example, 9834871 + ... + 9838228.

It is an arithmetic number, because the mean of its divisors is an integer number (4367428200).

Almost surely, 2^33031133221 is an apocalyptic number.

It is an amenable number.

33031133221 is a deficient number, since it is larger than the sum of its proper divisors (1908292379).

33031133221 is a wasteful number, since it uses less digits than its factorization.

33031133221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19673195.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 33031133221 its reverse (12233113033), we get a palindrome (45264246254).

The spelling of 33031133221 in words is "thirty-three billion, thirty-one million, one hundred thirty-three thousand, two hundred twenty-one".