30221220033 has 6 divisors (see below), whose sum is σ = 43652873394. Its totient is φ = 20147480016.

The previous prime is 30221219999. The next prime is 30221220079. The reversal of 30221220033 is 33002212203.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 25291495089 + 4929724944 = 159033^2 + 70212^2 .

It is not a de Polignac number, because 30221220033 - 2⁶ = 30221219969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30221219988 and 30221220015.

It is not an unprimeable number, because it can be changed into a prime (30221222033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1678956660 + ... + 1678956677.

It is an arithmetic number, because the mean of its divisors is an integer number (7275478899).

Almost surely, 2^30221220033 is an apocalyptic number.

It is an amenable number.

30221220033 is a deficient number, since it is larger than the sum of its proper divisors (13431653361).

30221220033 is a wasteful number, since it uses less digits than its factorization.

30221220033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357913343 (or 3357913340 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30221220033 its reverse (33002212203), we get a palindrome (63223432236).

The spelling of 30221220033 in words is "thirty billion, two hundred twenty-one million, two hundred twenty thousand, thirty-three".