10030331221 has 4 divisors (see below), whose sum is σ = 10301421292. Its totient is φ = 9759241152.

The previous prime is 10030331153. The next prime is 10030331237. The reversal of 10030331221 is 12213303001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12213303001 = 31379 ⋅389219.

It can be written as a sum of positive squares in 2 ways, for example, as 6825072996 + 3205258225 = 82614^2 + 56615^2 .

It is a cyclic number.

It is not a de Polignac number, because 10030331221 - 2³¹ = 7882847573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10030331195 and 10030331204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10030331621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135544980 + ... + 135545053.

It is an arithmetic number, because the mean of its divisors is an integer number (2575355323).

Almost surely, 2^10030331221 is an apocalyptic number.

It is an amenable number.

10030331221 is a deficient number, since it is larger than the sum of its proper divisors (271090071).

10030331221 is an equidigital number, since it uses as much as digits as its factorization.

10030331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271090070.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 10030331221 its reverse (12213303001), we get a palindrome (22243634222).

The spelling of 10030331221 in words is "ten billion, thirty million, three hundred thirty-one thousand, two hundred twenty-one".