111102220111 has 16 divisors (see below), whose sum is σ = 117511200000. Its totient is φ = 104749763328.

The previous prime is 111102220069. The next prime is 111102220147. The reversal of 111102220111 is 111022201111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111102220111 - 2²⁵ = 111068665679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111102220091 and 111102220100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111102220511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21558111 + ... + 21563263.

It is an arithmetic number, because the mean of its divisors is an integer number (7344450000).

Almost surely, 2^111102220111 is an apocalyptic number.

111102220111 is a deficient number, since it is larger than the sum of its proper divisors (6408979889).

111102220111 is a wasteful number, since it uses less digits than its factorization.

111102220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10398.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111102220111 its reverse (111022201111), we get a palindrome (222124421222).

The spelling of 111102220111 in words is "one hundred eleven billion, one hundred two million, two hundred twenty thousand, one hundred eleven".