30003333221 has 8 divisors (see below), whose sum is σ = 30218109504. Its totient is φ = 29788768800.

The previous prime is 30003333209. The next prime is 30003333223. The reversal of 30003333221 is 12233330003.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30003333221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30003333193 and 30003333202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30003333223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236930 + ... + 340796.

It is an arithmetic number, because the mean of its divisors is an integer number (3777263688).

Almost surely, 2^30003333221 is an apocalyptic number.

It is an amenable number.

30003333221 is a deficient number, since it is larger than the sum of its proper divisors (214776283).

30003333221 is a wasteful number, since it uses less digits than its factorization.

30003333221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105931.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 30003333221 its reverse (12233330003), we get a palindrome (42236663224).

The spelling of 30003333221 in words is "thirty billion, three million, three hundred thirty-three thousand, two hundred twenty-one".