10113032221 has 4 divisors (see below), whose sum is σ = 10461757500. Its totient is φ = 9764306944.

The previous prime is 10113032213. The next prime is 10113032239. The reversal of 10113032221 is 12223031101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12223031101 = 167 ⋅73191803.

It can be written as a sum of positive squares in 2 ways, for example, as 2279012121 + 7834020100 = 47739^2 + 88510^2 .

It is a cyclic number.

It is not a de Polignac number, because 10113032221 - 2³ = 10113032213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10113032195 and 10113032204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10113032021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174362596 + ... + 174362653.

It is an arithmetic number, because the mean of its divisors is an integer number (2615439375).

Almost surely, 2^10113032221 is an apocalyptic number.

It is an amenable number.

10113032221 is a deficient number, since it is larger than the sum of its proper divisors (348725279).

10113032221 is an equidigital number, since it uses as much as digits as its factorization.

10113032221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348725278.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10113032221 its reverse (12223031101), we get a palindrome (22336063322).

The spelling of 10113032221 in words is "ten billion, one hundred thirteen million, thirty-two thousand, two hundred twenty-one".