111111000122200 has 48 divisors (see below), whose sum is σ = 278204850312480. Its totient is φ = 41025600044160.

The previous prime is 111111000122119. The next prime is 111111000122209. The reversal of 111111000122200 is 2221000111111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111000122209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21367497424 + ... + 21367502623.

It is an arithmetic number, because the mean of its divisors is an integer number (5795934381510).

Almost surely, 2^{111111000122200} is an apocalyptic number.

111111000122200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111111000122200 is an abundant number, since it is smaller than the sum of its proper divisors (167093850190280).

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

111111000122200 is a wasteful number, since it uses less digits than its factorization.

111111000122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42735000076 (or 42735000067 counting only the distinct ones).

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

Adding to 111111000122200 its reverse (2221000111111), we get a palindrome (113332000233311).

The spelling of 111111000122200 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred twenty-two thousand, two hundred".