30333020221 has 12 divisors (see below), whose sum is σ = 35489321532. Its totient is φ = 25849436928.

The previous prime is 30333020189. The next prime is 30333020239. The reversal of 30333020221 is 12202033303.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13662336996 + 16670683225 = 116886^2 + 129115^2 .

It is not a de Polignac number, because 30333020221 - 2⁵ = 30333020189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30333020281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1780660 + ... + 1797613.

It is an arithmetic number, because the mean of its divisors is an integer number (2957443461).

Almost surely, 2^30333020221 is an apocalyptic number.

It is an amenable number.

30333020221 is a deficient number, since it is larger than the sum of its proper divisors (5156301311).

30333020221 is a wasteful number, since it uses less digits than its factorization.

30333020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3578460 (or 3578453 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 30333020221 its reverse (12202033303), we get a palindrome (42535053524).

The spelling of 30333020221 in words is "thirty billion, three hundred thirty-three million, twenty thousand, two hundred twenty-one".