1030201320221 has 4 divisors (see below), whose sum is σ = 1030205979132. Its totient is φ = 1030196661312.

The previous prime is 1030201320163. The next prime is 1030201320241. The reversal of 1030201320221 is 1220231020301.

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 432766622500 + 597434697721 = 657850^2 + 772939^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030201320221 - 2⁶ = 1030201320157 is a prime.

It is a super-2 number, since 2×1030201320221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1030201320221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030201320241) 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, 1980326 + ... + 2445831.

It is an arithmetic number, because the mean of its divisors is an integer number (257551494783).

Almost surely, 2^{1030201320221} is an apocalyptic number.

It is an amenable number.

1030201320221 is a deficient number, since it is larger than the sum of its proper divisors (4658911).

1030201320221 is an equidigital number, since it uses as much as digits as its factorization.

1030201320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4658910.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1030201320221 its reverse (1220231020301), we get a palindrome (2250432340522).

It can be divided in two parts, 103020 and 1320221, that added together give a palindrome (1423241).

The spelling of 1030201320221 in words is "one trillion, thirty billion, two hundred one million, three hundred twenty thousand, two hundred twenty-one".