111100221022104 has 384 divisors, whose sum is σ = 318611038636800. Its totient is φ = 34933309931520.

The previous prime is 111100221022079. The next prime is 111100221022111. The reversal of 111100221022104 is 401220122001111.

It is a super-2 number, since 2×111100221022104² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 16954097292 + ... + 16954103844.

It is an arithmetic number, because the mean of its divisors is an integer number (829716246450).

Almost surely, 2^{111100221022104} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111100221022104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159305519318400).

111100221022104 is an abundant number, since it is smaller than the sum of its proper divisors (207510817614696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111100221022104 is a wasteful number, since it uses less digits than its factorization.

111100221022104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8115 (or 8108 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111100221022104 its reverse (401220122001111), we get a palindrome (512320343023215).

The spelling of 111100221022104 in words is "one hundred eleven trillion, one hundred billion, two hundred twenty-one million, twenty-two thousand, one hundred four".