112211100100 has 144 divisors (see below), whose sum is σ = 273147017472. Its totient is φ = 39657600000.

The previous prime is 112211100083. The next prime is 112211100101. The reversal of 112211100100 is 1001112211.

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 (112211100101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12217510 + ... + 12226690.

It is an arithmetic number, because the mean of its divisors is an integer number (1896854288).

Almost surely, 2^112211100100 is an apocalyptic number.

112211100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112211100100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136573508736).

112211100100 is an abundant number, since it is smaller than the sum of its proper divisors (160935917372).

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

112211100100 is a wasteful number, since it uses less digits than its factorization.

112211100100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9518 (or 9511 counting only the distinct ones).

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

Adding to 112211100100 its reverse (1001112211), we get a palindrome (113212212311).

The spelling of 112211100100 in words is "one hundred twelve billion, two hundred eleven million, one hundred thousand, one hundred".