111111120122120 has 32 divisors (see below), whose sum is σ = 250000323246720. Its totient is φ = 44444394187200.

The previous prime is 111111120122113. The next prime is 111111120122131. The reversal of 111111120122120 is 21221021111111.

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, 56960945 + ... + 58879295.

It is an arithmetic number, because the mean of its divisors is an integer number (7812510101460).

Almost surely, 2^{111111120122120} is an apocalyptic number.

111111120122120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111111120122120 is an abundant number, since it is smaller than the sum of its proper divisors (138889203124600).

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

111111120122120 is a wasteful number, since it uses less digits than its factorization.

111111120122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366365 (or 3366361 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111111120122120 its reverse (21221021111111), we get a palindrome (132332141233231).

The spelling of 111111120122120 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred twenty million, one hundred twenty-two thousand, one hundred twenty".