221113101 has 24 divisors (see below), whose sum is σ = 343127232. Its totient is φ = 126121600.

The previous prime is 221113091. The next prime is 221113121. The reversal of 221113101 is 101311122.

It is not a de Polignac number, because 221113101 - 2⁶ = 221113037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221113121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11745 + ... + 24086.

It is an arithmetic number, because the mean of its divisors is an integer number (14296968).

Almost surely, 2^221113101 is an apocalyptic number.

It is an amenable number.

221113101 is a deficient number, since it is larger than the sum of its proper divisors (122014131).

221113101 is a wasteful number, since it uses less digits than its factorization.

221113101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35873 (or 35862 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 221113101 is about 14869.8722590344. The cubic root of 221113101 is about 604.6974796088.

Adding to 221113101 its reverse (101311122), we get a palindrome (322424223).

The spelling of 221113101 in words is "two hundred twenty-one million, one hundred thirteen thousand, one hundred one".