111201200120 has 16 divisors (see below), whose sum is σ = 250202700360. Its totient is φ = 44480480032.

The previous prime is 111201200093. The next prime is 111201200129. The reversal of 111201200120 is 21002102111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111201200129) 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, 1390014962 + ... + 1390015041.

Almost surely, 2^111201200120 is an apocalyptic number.

111201200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111201200120 is an abundant number, since it is smaller than the sum of its proper divisors (139001500240).

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

111201200120 is a wasteful number, since it uses less digits than its factorization.

111201200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780030014 (or 2780030010 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111201200120 its reverse (21002102111), we get a palindrome (132203302231).

The spelling of 111201200120 in words is "one hundred eleven billion, two hundred one million, two hundred thousand, one hundred twenty".