111001222111120 has 80 divisors (see below), whose sum is σ = 283112309920320. Its totient is φ = 40138583052800.

The previous prime is 111001222111103. The next prime is 111001222111121. The reversal of 111001222111120 is 21111222100111.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 111001222111094 and 111001222111103.

It is not an unprimeable number, because it can be changed into a prime (111001222111121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352182571 + ... + 352497610.

It is an arithmetic number, because the mean of its divisors is an integer number (3538903874004).

Almost surely, 2^{111001222111120} is an apocalyptic number.

111001222111120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111001222111120 is an abundant number, since it is smaller than the sum of its proper divisors (172111087809200).

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

111001222111120 is a wasteful number, since it uses less digits than its factorization.

111001222111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704680384 (or 704680378 counting only the distinct ones).

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

Adding to 111001222111120 its reverse (21111222100111), we get a palindrome (132112444211231).

The spelling of 111001222111120 in words is "one hundred eleven trillion, one billion, two hundred twenty-two million, one hundred eleven thousand, one hundred twenty".