111220100220200 has 96 divisors (see below), whose sum is σ = 265782582084960. Its totient is φ = 43251919084800.

The previous prime is 111220100220193. The next prime is 111220100220217. The reversal of 111220100220200 is 2022001022111.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3636935 + ... + 15351465.

It is an arithmetic number, because the mean of its divisors is an integer number (2768568563385).

Almost surely, 2^{111220100220200} is an apocalyptic number.

111220100220200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111220100220200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132891291042480).

111220100220200 is an abundant number, since it is smaller than the sum of its proper divisors (154562481864760).

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

111220100220200 is a wasteful number, since it uses less digits than its factorization.

111220100220200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11715867 (or 11715858 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 111220100220200 its reverse (2022001022111), we get a palindrome (113242101242311).

The spelling of 111220100220200 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred million, two hundred twenty thousand, two hundred".