111223100240 has 160 divisors (see below), whose sum is σ = 298807660800. Its totient is φ = 37713715200.

The previous prime is 111223100237. The next prime is 111223100243. The reversal of 111223100240 is 42001322111.

It is an interprime number because it is at equal distance from previous prime (111223100237) and next prime (111223100243).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111223100243) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 20106275 + ... + 20111805.

It is an arithmetic number, because the mean of its divisors is an integer number (1867547880).

Almost surely, 2^111223100240 is an apocalyptic number.

111223100240 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 111223100240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149403830400).

111223100240 is an abundant number, since it is smaller than the sum of its proper divisors (187584560560).

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

111223100240 is a wasteful number, since it uses less digits than its factorization.

111223100240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5941 (or 5935 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 111223100240 its reverse (42001322111), we get a palindrome (153224422351).

The spelling of 111223100240 in words is "one hundred eleven billion, two hundred twenty-three million, one hundred thousand, two hundred forty".