111102101122220 has 144 divisors (see below), whose sum is σ = 258536408562432. Its totient is φ = 40065397182720.

The previous prime is 111102101122213. The next prime is 111102101122237. The reversal of 111102101122220 is 22221101201111.

111102101122220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3677522915 + ... + 3677553125.

It is an arithmetic number, because the mean of its divisors is an integer number (1795391726128).

Almost surely, 2^{111102101122220} is an apocalyptic number.

111102101122220 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 111102101122220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129268204281216).

111102101122220 is an abundant number, since it is smaller than the sum of its proper divisors (147434307440212).

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

111102101122220 is a wasteful number, since it uses less digits than its factorization.

111102101122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55592 (or 55577 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111102101122220 its reverse (22221101201111), we get a palindrome (133323202323331).

The spelling of 111102101122220 in words is "one hundred eleven trillion, one hundred two billion, one hundred one million, one hundred twenty-two thousand, two hundred twenty".