111113110221 has 16 divisors (see below), whose sum is σ = 152943286464. Its totient is φ = 71699917824.

The previous prime is 111113110159. The next prime is 111113110231. The reversal of 111113110221 is 122011311111.

It is not a de Polignac number, because 111113110221 - 2⁷ = 111113110093 is a prime.

It is a super-2 number, since 2×111113110221² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 111113110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111113110231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2571891 + ... + 2614736.

It is an arithmetic number, because the mean of its divisors is an integer number (9558955404).

Almost surely, 2^111113110221 is an apocalyptic number.

It is an amenable number.

111113110221 is a deficient number, since it is larger than the sum of its proper divisors (41830176243).

111113110221 is a wasteful number, since it uses less digits than its factorization.

111113110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5186860.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 111113110221 its reverse (122011311111), we get a palindrome (233124421332).

The spelling of 111113110221 in words is "one hundred eleven billion, one hundred thirteen million, one hundred ten thousand, two hundred twenty-one".