30221033321 has 4 divisors (see below), whose sum is σ = 30231106644. Its totient is φ = 30210960000.

The previous prime is 30221033309. The next prime is 30221033327. The reversal of 30221033321 is 12333012203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24214783321 + 6006250000 = 155611^2 + 77500^2 .

It is a cyclic number.

It is not a de Polignac number, because 30221033321 - 2¹⁴ = 30221016937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30221033293 and 30221033302.

It is not an unprimeable number, because it can be changed into a prime (30221033327) 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 3 ways as a sum of consecutive naturals, for example, 5032160 + ... + 5038161.

It is an arithmetic number, because the mean of its divisors is an integer number (7557776661).

Almost surely, 2^30221033321 is an apocalyptic number.

It is an amenable number.

30221033321 is a deficient number, since it is larger than the sum of its proper divisors (10073323).

30221033321 is a wasteful number, since it uses less digits than its factorization.

30221033321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10073322.

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

Adding to 30221033321 its reverse (12333012203), we get a palindrome (42554045524).

The spelling of 30221033321 in words is "thirty billion, two hundred twenty-one million, thirty-three thousand, three hundred twenty-one".