10113223221 has 16 divisors (see below), whose sum is σ = 15347982720. Its totient is φ = 6577705440.

The previous prime is 10113223189. The next prime is 10113223231. The reversal of 10113223221 is 12232231101.

10113223221 is a `hidden beast` number, since 10 + 11 + 322 + 322 + 1 = 666.

10113223221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10113223221 - 2⁵ = 10113223189 is a prime.

It is a super-3 number, since 3×10113223221³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 10113223194 and 10113223203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10113223231) 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 15 ways as a sum of consecutive naturals, for example, 4566745 + ... + 4568958.

It is an arithmetic number, because the mean of its divisors is an integer number (959248920).

Almost surely, 2^10113223221 is an apocalyptic number.

It is an amenable number.

10113223221 is a deficient number, since it is larger than the sum of its proper divisors (5234759499).

10113223221 is an equidigital number, since it uses as much as digits as its factorization.

10113223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9135753 (or 9135747 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 10113223221 its reverse (12232231101), we get a palindrome (22345454322).

The spelling of 10113223221 in words is "ten billion, one hundred thirteen million, two hundred twenty-three thousand, two hundred twenty-one".