33021221330 has 8 divisors (see below), whose sum is σ = 59438198412. Its totient is φ = 13208488528.

The previous prime is 33021221293. The next prime is 33021221333. The reversal of 33021221330 is 3312212033.

It can be written as a sum of positive squares in 2 ways, for example, as 32754846289 + 266375041 = 180983^2 + 16321^2 .

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

It is not an unprimeable number, because it can be changed into a prime (33021221333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1651061057 + ... + 1651061076.

Almost surely, 2^33021221330 is an apocalyptic number.

33021221330 is a deficient number, since it is larger than the sum of its proper divisors (26416977082).

33021221330 is a wasteful number, since it uses less digits than its factorization.

33021221330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3302122140.

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

Adding to 33021221330 its reverse (3312212033), we get a palindrome (36333433363).

The spelling of 33021221330 in words is "thirty-three billion, twenty-one million, two hundred twenty-one thousand, three hundred thirty".