30003033221 has 4 divisors (see below), whose sum is σ = 34289180832. Its totient is φ = 25716885612.

The previous prime is 30003033199. The next prime is 30003033257. The reversal of 30003033221 is 12233030003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30003033221 - 2²² = 29998838917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30003033221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30003033421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2143073795 + ... + 2143073808.

It is an arithmetic number, because the mean of its divisors is an integer number (8572295208).

Almost surely, 2^30003033221 is an apocalyptic number.

It is an amenable number.

30003033221 is a deficient number, since it is larger than the sum of its proper divisors (4286147611).

30003033221 is an equidigital number, since it uses as much as digits as its factorization.

30003033221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4286147610.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 30003033221 its reverse (12233030003), we get a palindrome (42236063224).

The spelling of 30003033221 in words is "thirty billion, three million, thirty-three thousand, two hundred twenty-one".