111100221201 has 16 divisors (see below), whose sum is σ = 148529729600. Its totient is φ = 73868889600.

The previous prime is 111100221179. The next prime is 111100221203. The reversal of 111100221201 is 102122001111.

It is not a de Polignac number, because 111100221201 - 2⁹ = 111100220689 is a prime.

It is a super-2 number, since 2×111100221201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111100221203) 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, 3946626 + ... + 3974676.

It is an arithmetic number, because the mean of its divisors is an integer number (9283108100).

Almost surely, 2^111100221201 is an apocalyptic number.

It is an amenable number.

111100221201 is a deficient number, since it is larger than the sum of its proper divisors (37429508399).

111100221201 is a wasteful number, since it uses less digits than its factorization.

111100221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31536.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111100221201 its reverse (102122001111), we get a palindrome (213222222312).

The spelling of 111100221201 in words is "one hundred eleven billion, one hundred million, two hundred twenty-one thousand, two hundred one".