111201343220 has 24 divisors (see below), whose sum is σ = 254752168608. Its totient is φ = 40436852000.

The previous prime is 111201343087. The next prime is 111201343223. The reversal of 111201343220 is 22343102111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 111201343192 and 111201343201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111201343223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252730106 + ... + 252730545.

It is an arithmetic number, because the mean of its divisors is an integer number (10614673692).

Almost surely, 2^111201343220 is an apocalyptic number.

111201343220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111201343220 is an abundant number, since it is smaller than the sum of its proper divisors (143550825388).

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

111201343220 is a wasteful number, since it uses less digits than its factorization.

111201343220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505460671 (or 505460669 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 111201343220 its reverse (22343102111), we get a palindrome (133544445331).

The spelling of 111201343220 in words is "one hundred eleven billion, two hundred one million, three hundred forty-three thousand, two hundred twenty".