33433011221 has 8 divisors (see below), whose sum is σ = 33627971520. Its totient is φ = 33238142208.

The previous prime is 33433011217. The next prime is 33433011233. The reversal of 33433011221 is 12211033433.

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 33433011221 - 2² = 33433011217 is a prime.

It is a super-2 number, since 2×33433011221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33433014221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797045 + ... + 837941.

It is an arithmetic number, because the mean of its divisors is an integer number (4203496440).

Almost surely, 2^33433011221 is an apocalyptic number.

It is an amenable number.

33433011221 is a deficient number, since it is larger than the sum of its proper divisors (194960299).

33433011221 is a wasteful number, since it uses less digits than its factorization.

33433011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45643.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 33433011221 its reverse (12211033433), we get a palindrome (45644044654).

The spelling of 33433011221 in words is "thirty-three billion, four hundred thirty-three million, eleven thousand, two hundred twenty-one".