111012230100 has 144 divisors (see below), whose sum is σ = 335378534400. Its totient is φ = 28297737600.

The previous prime is 111012230089. The next prime is 111012230149. The reversal of 111012230100 is 1032210111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12905601 + ... + 12914199.

It is an arithmetic number, because the mean of its divisors is an integer number (2329017600).

Almost surely, 2^111012230100 is an apocalyptic number.

111012230100 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 111012230100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167689267200).

111012230100 is an abundant number, since it is smaller than the sum of its proper divisors (224366304300).

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

111012230100 is a wasteful number, since it uses less digits than its factorization.

111012230100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10510 (or 10503 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 111012230100 its reverse (1032210111), we get a palindrome (112044440211).

The spelling of 111012230100 in words is "one hundred eleven billion, twelve million, two hundred thirty thousand, one hundred".