111300221220 has 48 divisors (see below), whose sum is σ = 328042760640. Its totient is φ = 28117950336.

The previous prime is 111300221203. The next prime is 111300221231. The reversal of 111300221220 is 22122003111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111300221220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48814747 + ... + 48817026.

It is an arithmetic number, because the mean of its divisors is an integer number (6834224180).

Almost surely, 2^111300221220 is an apocalyptic number.

111300221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111300221220 is an abundant number, since it is smaller than the sum of its proper divisors (216742539420).

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

111300221220 is a wasteful number, since it uses less digits than its factorization.

111300221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97631804 (or 97631802 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 111300221220 its reverse (22122003111), we get a palindrome (133422224331).

It can be divided in two parts, 111300 and 221220, that added together give a triangular number (332520 = T₈₁₅).

The spelling of 111300221220 in words is "one hundred eleven billion, three hundred million, two hundred twenty-one thousand, two hundred twenty".