111113244220 has 48 divisors (see below), whose sum is σ = 263327954400. Its totient is φ = 39011544320.

The previous prime is 111113244217. The next prime is 111113244223. The reversal of 111113244220 is 22442311111.

It is an interprime number because it is at equal distance from previous prime (111113244217) and next prime (111113244223).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 111113244191 and 111113244200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111113244223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8701555 + ... + 8714314.

It is an arithmetic number, because the mean of its divisors is an integer number (5485999050).

Almost surely, 2^111113244220 is an apocalyptic number.

111113244220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111113244220 is an abundant number, since it is smaller than the sum of its proper divisors (152214710180).

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

111113244220 is a wasteful number, since it uses less digits than its factorization.

111113244220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17415918 (or 17415916 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 111113244220 its reverse (22442311111), we get a palindrome (133555555331).

The spelling of 111113244220 in words is "one hundred eleven billion, one hundred thirteen million, two hundred forty-four thousand, two hundred twenty".