111122121001120 has 48 divisors (see below), whose sum is σ = 266975604292320. Its totient is φ = 43695478084864.

The previous prime is 111122121001097. The next prime is 111122121001139. The reversal of 111122121001120 is 21100121221111.

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 = 111122121001094 and 111122121001103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5885696122 + ... + 5885715001.

It is an arithmetic number, because the mean of its divisors is an integer number (5561991756090).

Almost surely, 2^{111122121001120} is an apocalyptic number.

111122121001120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111122121001120 is an abundant number, since it is smaller than the sum of its proper divisors (155853483291200).

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

111122121001120 is a wasteful number, since it uses less digits than its factorization.

111122121001120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11771411197 (or 11771411189 counting only the distinct ones).

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

Adding to 111122121001120 its reverse (21100121221111), we get a palindrome (132222242222231).

The spelling of 111122121001120 in words is "one hundred eleven trillion, one hundred twenty-two billion, one hundred twenty-one million, one thousand, one hundred twenty".