111121010102120 has 16 divisors (see below), whose sum is σ = 250022272729860. Its totient is φ = 44448404040832.

The previous prime is 111121010102071. The next prime is 111121010102143. The reversal of 111121010102120 is 21201010121111.

111121010102120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 93009397763044 + 18111612339076 = 9644138^2 + 4255774^2 .

It is a super-3 number, since 3×111121010102120³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 111121010102095 and 111121010102104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1389012626237 + ... + 1389012626316.

Almost surely, 2^{111121010102120} is an apocalyptic number.

111121010102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111121010102120 is an abundant number, since it is smaller than the sum of its proper divisors (138901262627740).

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

111121010102120 is a wasteful number, since it uses less digits than its factorization.

111121010102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2778025252564 (or 2778025252560 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111121010102120 its reverse (21201010121111), we get a palindrome (132322020223231).

The spelling of 111121010102120 in words is "one hundred eleven trillion, one hundred twenty-one billion, ten million, one hundred two thousand, one hundred twenty".