111210012100 has 36 divisors (see below), whose sum is σ = 263264431248. Its totient is φ = 40440004000.

The previous prime is 111210012097. The next prime is 111210012107. The reversal of 111210012100 is 1210012111.

111210012100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (111210012107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50548906 + ... + 50551105.

It is an arithmetic number, because the mean of its divisors is an integer number (7312900868).

Almost surely, 2^111210012100 is an apocalyptic number.

111210012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111210012100 is an abundant number, since it is smaller than the sum of its proper divisors (152054419148).

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

111210012100 is a wasteful number, since it uses less digits than its factorization.

111210012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101100036 (or 101100029 counting only the distinct ones).

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

Adding to 111210012100 its reverse (1210012111), we get a palindrome (112420024211).

The spelling of 111210012100 in words is "one hundred eleven billion, two hundred ten million, twelve thousand, one hundred".