111221102113 has 4 divisors (see below), whose sum is σ = 121332111408. Its totient is φ = 101110092820.

The previous prime is 111221102059. The next prime is 111221102117. The reversal of 111221102113 is 311201122111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 111221102113 - 2¹⁷ = 111220971041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111221102117) 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, 5055504631 + ... + 5055504652.

It is an arithmetic number, because the mean of its divisors is an integer number (30333027852).

Almost surely, 2^111221102113 is an apocalyptic number.

It is an amenable number.

111221102113 is a deficient number, since it is larger than the sum of its proper divisors (10111009295).

111221102113 is a wasteful number, since it uses less digits than its factorization.

111221102113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10111009294.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 111221102113 its reverse (311201122111), we get a palindrome (422422224224).

The spelling of 111221102113 in words is "one hundred eleven billion, two hundred twenty-one million, one hundred two thousand, one hundred thirteen".