30303301020221 has 4 divisors (see below), whose sum is σ = 30800076446844. Its totient is φ = 29806525593600.

The previous prime is 30303301020193. The next prime is 30303301020227. The reversal of 30303301020221 is 12202010330303.

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 2122980132025 + 28180320888196 = 1457045^2 + 5308514^2 .

It is a cyclic number.

It is not a de Polignac number, because 30303301020221 - 2¹⁸ = 30303300758077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30303301020193 and 30303301020202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30303301020227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248387713220 + ... + 248387713341.

It is an arithmetic number, because the mean of its divisors is an integer number (7700019111711).

Almost surely, 2^{30303301020221} is an apocalyptic number.

It is an amenable number.

30303301020221 is a deficient number, since it is larger than the sum of its proper divisors (496775426623).

30303301020221 is an equidigital number, since it uses as much as digits as its factorization.

30303301020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496775426622.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30303301020221 its reverse (12202010330303), we get a palindrome (42505311350524).

The spelling of 30303301020221 in words is "thirty trillion, three hundred three billion, three hundred one million, twenty thousand, two hundred twenty-one".