111002211221120 has 128 divisors (see below), whose sum is σ = 269143011878400. Its totient is φ = 43770443857920.

The previous prime is 111002211221107. The next prime is 111002211221131. The reversal of 111002211221120 is 21122112200111.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30696437 + ... + 34121483.

It is an arithmetic number, because the mean of its divisors is an integer number (2102679780300).

Almost surely, 2^{111002211221120} is an apocalyptic number.

111002211221120 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 111002211221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134571505939200).

111002211221120 is an abundant number, since it is smaller than the sum of its proper divisors (158140800657280).

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

111002211221120 is an equidigital number, since it uses as much as digits as its factorization.

111002211221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425786 (or 3425774 counting only the distinct ones).

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

Adding to 111002211221120 its reverse (21122112200111), we get a palindrome (132124323421231).

The spelling of 111002211221120 in words is "one hundred eleven trillion, two billion, two hundred eleven million, two hundred twenty-one thousand, one hundred twenty".