111021120112120 has 16 divisors (see below), whose sum is σ = 249797520252360. Its totient is φ = 44408448044832.

The previous prime is 111021120112087. The next prime is 111021120112121. The reversal of 111021120112120 is 21211021120111.

It is a super-2 number, since 2×111021120112120² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111021120112094 and 111021120112103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111021120112121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387764001362 + ... + 1387764001441.

Almost surely, 2^{111021120112120} is an apocalyptic number.

111021120112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111021120112120 is an abundant number, since it is smaller than the sum of its proper divisors (138776400140240).

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

111021120112120 is a wasteful number, since it uses less digits than its factorization.

111021120112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775528002814 (or 2775528002810 counting only the distinct ones).

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

Adding to 111021120112120 its reverse (21211021120111), we get a palindrome (132232141232231).

The spelling of 111021120112120 in words is "one hundred eleven trillion, twenty-one billion, one hundred twenty million, one hundred twelve thousand, one hundred twenty".