202013030012221 has 4 divisors (see below), whose sum is σ = 202013930300512. Its totient is φ = 202012129723932.

The previous prime is 202013030012207. The next prime is 202013030012257. The reversal of 202013030012221 is 122210030310202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 202013030012221 - 2¹⁷ = 202013029881149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202013030012281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449807481 + ... + 450256366.

It is an arithmetic number, because the mean of its divisors is an integer number (50503482575128).

Almost surely, 2^{202013030012221} is an apocalyptic number.

It is an amenable number.

202013030012221 is a deficient number, since it is larger than the sum of its proper divisors (900288291).

202013030012221 is an equidigital number, since it uses as much as digits as its factorization.

202013030012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900288290.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 202013030012221 its reverse (122210030310202), we get a palindrome (324223060322423).

The spelling of 202013030012221 in words is "two hundred two trillion, thirteen billion, thirty million, twelve thousand, two hundred twenty-one".