111222101120 has 128 divisors (see below), whose sum is σ = 290618677440. Its totient is φ = 40453484544.

The previous prime is 111222101083. The next prime is 111222101131. The reversal of 111222101120 is 21101222111.

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

It is a junction number, because it is equal to n+sod(n) for n = 111222101095 and 111222101104.

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, 457679 + ... + 657201.

Almost surely, 2^111222101120 is an apocalyptic number.

111222101120 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 111222101120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145309338720).

111222101120 is an abundant number, since it is smaller than the sum of its proper divisors (179396576320).

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

111222101120 is a wasteful number, since it uses less digits than its factorization.

111222101120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199622 (or 199610 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111222101120 its reverse (21101222111), we get a palindrome (132323323231).

The spelling of 111222101120 in words is "one hundred eleven billion, two hundred twenty-two million, one hundred one thousand, one hundred twenty".