30013331331221 has 16 divisors (see below), whose sum is σ = 34429620158976. Its totient is φ = 25629353531136.

The previous prime is 30013331331187. The next prime is 30013331331229. The reversal of 30013331331221 is 12213313331003.

It is a cyclic number.

It is not a de Polignac number, because 30013331331221 - 2⁶ = 30013331331157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30013331331229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3469046 + ... + 8488871.

It is an arithmetic number, because the mean of its divisors is an integer number (2151851259936).

Almost surely, 2^{30013331331221} is an apocalyptic number.

It is an amenable number.

30013331331221 is a deficient number, since it is larger than the sum of its proper divisors (4416288827755).

30013331331221 is a wasteful number, since it uses less digits than its factorization.

30013331331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11959268.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 30013331331221 its reverse (12213313331003), we get a palindrome (42226644662224).

The spelling of 30013331331221 in words is "thirty trillion, thirteen billion, three hundred thirty-one million, three hundred thirty-one thousand, two hundred twenty-one".