30201200221 has 4 divisors (see below), whose sum is σ = 30201831100. Its totient is φ = 30200569344.

The previous prime is 30201200219. The next prime is 30201200297. The reversal of 30201200221 is 12200210203.

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 14444674596 + 15756525625 = 120186^2 + 125525^2 .

It is a cyclic number.

It is not a de Polignac number, because 30201200221 - 2¹ = 30201200219 is a prime.

It is a super-2 number, since 2×30201200221² (a number of 22 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 (30201200201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237156 + ... + 341533.

It is an arithmetic number, because the mean of its divisors is an integer number (7550457775).

Almost surely, 2^30201200221 is an apocalyptic number.

It is an amenable number.

30201200221 is a deficient number, since it is larger than the sum of its proper divisors (630879).

30201200221 is an equidigital number, since it uses as much as digits as its factorization.

30201200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630878.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 30201200221 its reverse (12200210203), we get a palindrome (42401410424).

The spelling of 30201200221 in words is "thirty billion, two hundred one million, two hundred thousand, two hundred twenty-one".