10031233221 has 6 divisors (see below), whose sum is σ = 14489559110. Its totient is φ = 6687488808.

The previous prime is 10031233189. The next prime is 10031233229. The reversal of 10031233221 is 12233213001.

10031233221 is a `hidden beast` number, since 1 + 0 + 0 + 312 + 332 + 21 = 666.

10031233221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8116208100 + 1915025121 = 90090^2 + 43761^2 .

It is not a de Polignac number, because 10031233221 - 2⁵ = 10031233189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10031233194 and 10031233203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031233229) 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 5 ways as a sum of consecutive naturals, for example, 557290726 + ... + 557290743.

Almost surely, 2^10031233221 is an apocalyptic number.

It is an amenable number.

10031233221 is a deficient number, since it is larger than the sum of its proper divisors (4458325889).

10031233221 is a wasteful number, since it uses less digits than its factorization.

10031233221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114581475 (or 1114581472 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 10031233221 its reverse (12233213001), we get a palindrome (22264446222).

The spelling of 10031233221 in words is "ten billion, thirty-one million, two hundred thirty-three thousand, two hundred twenty-one".