111201020200 has 48 divisors (see below), whose sum is σ = 261102244860. Its totient is φ = 44040000000.

The previous prime is 111201020179. The next prime is 111201020209. The reversal of 111201020200 is 2020102111.

It can be written as a sum of positive squares in 6 ways, for example, as 63074313316 + 48126706884 = 251146^2 + 219378^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (111201020209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2732301 + ... + 2772700.

Almost surely, 2^111201020200 is an apocalyptic number.

111201020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111201020200 is an abundant number, since it is smaller than the sum of its proper divisors (149901224660).

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

111201020200 is a wasteful number, since it uses less digits than its factorization.

111201020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505118 (or 5505109 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 111201020200 its reverse (2020102111), we get a palindrome (113221122311).

The spelling of 111201020200 in words is "one hundred eleven billion, two hundred one million, twenty thousand, two hundred".