33221020331 has 8 divisors (see below), whose sum is σ = 33640343184. Its totient is φ = 32802151680.

The previous prime is 33221020303. The next prime is 33221020333. The reversal of 33221020331 is 13302012233.

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 33221020331 - 2¹⁴ = 33221003947 is a prime.

It is a super-2 number, since 2×33221020331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33221020333) 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, 34871 + ... + 260111.

It is an arithmetic number, because the mean of its divisors is an integer number (4205042898).

Almost surely, 2^33221020331 is an apocalyptic number.

33221020331 is a deficient number, since it is larger than the sum of its proper divisors (419322853).

33221020331 is a wasteful number, since it uses less digits than its factorization.

33221020331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227101.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 33221020331 its reverse (13302012233), we get a palindrome (46523032564).

The spelling of 33221020331 in words is "thirty-three billion, two hundred twenty-one million, twenty thousand, three hundred thirty-one".