30201020033221 has 4 divisors (see below), whose sum is σ = 30304095187212. Its totient is φ = 30097944879232.

The previous prime is 30201020033189. The next prime is 30201020033263. The reversal of 30201020033221 is 12233002010203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27666600609025 + 2534419424196 = 5259905^2 + 1591986^2 .

It is a cyclic number.

It is not a de Polignac number, because 30201020033221 - 2⁵ = 30201020033189 is a prime.

It is a super-2 number, since 2×30201020033221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30201020033291) 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 3 ways as a sum of consecutive naturals, for example, 51537576556 + ... + 51537577141.

It is an arithmetic number, because the mean of its divisors is an integer number (7576023796803).

Almost surely, 2^{30201020033221} is an apocalyptic number.

It is an amenable number.

30201020033221 is a deficient number, since it is larger than the sum of its proper divisors (103075153991).

30201020033221 is a wasteful number, since it uses less digits than its factorization.

30201020033221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103075153990.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30201020033221 its reverse (12233002010203), we get a palindrome (42434022043424).

The spelling of 30201020033221 in words is "thirty trillion, two hundred one billion, twenty million, thirty-three thousand, two hundred twenty-one".