11112100120 has 64 divisors (see below), whose sum is σ = 27737510400. Its totient is φ = 3972266880.

The previous prime is 11112100091. The next prime is 11112100123. The reversal of 11112100120 is 2100121111.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 11112100097 and 11112100106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112100123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188064 + ... + 239983.

It is an arithmetic number, because the mean of its divisors is an integer number (433398600).

Almost surely, 2^11112100120 is an apocalyptic number.

11112100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11112100120 is an abundant number, since it is smaller than the sum of its proper divisors (16625410280).

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

11112100120 is a wasteful number, since it uses less digits than its factorization.

11112100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428128 (or 428124 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11112100120 its reverse (2100121111), we get a palindrome (13212221231).

The spelling of 11112100120 in words is "eleven billion, one hundred twelve million, one hundred thousand, one hundred twenty".