111200220220 has 24 divisors (see below), whose sum is σ = 234953110224. Its totient is φ = 44207202816.

The previous prime is 111200220199. The next prime is 111200220289. The reversal of 111200220220 is 22022002111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 111200220220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17051989 + ... + 17058508.

It is an arithmetic number, because the mean of its divisors is an integer number (9789712926).

Almost surely, 2^111200220220 is an apocalyptic number.

111200220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111200220220 is an abundant number, since it is smaller than the sum of its proper divisors (123752890004).

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

111200220220 is a wasteful number, since it uses less digits than its factorization.

111200220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34110669 (or 34110667 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 111200220220 its reverse (22022002111), we get a palindrome (133222222331).

The spelling of 111200220220 in words is "one hundred eleven billion, two hundred million, two hundred twenty thousand, two hundred twenty".