111200120212120 has 32 divisors (see below), whose sum is σ = 250203881862720. Its totient is φ = 44479406060800.

The previous prime is 111200120212039. The next prime is 111200120212121. The reversal of 111200120212120 is 21212021002111.

It is a junction number, because it is equal to n+sod(n) for n = 111200120212094 and 111200120212103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200120212121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17252512 + ... + 22804591.

It is an arithmetic number, because the mean of its divisors is an integer number (7818871308210).

Almost surely, 2^{111200120212120} is an apocalyptic number.

111200120212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111200120212120 is an abundant number, since it is smaller than the sum of its proper divisors (139003761650600).

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

111200120212120 is a wasteful number, since it uses less digits than its factorization.

111200120212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40126515 (or 40126511 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111200120212120 its reverse (21212021002111), we get a palindrome (132412141214231).

The spelling of 111200120212120 in words is "one hundred eleven trillion, two hundred billion, one hundred twenty million, two hundred twelve thousand, one hundred twenty".