111200112201020 has 24 divisors (see below), whose sum is σ = 233526686374800. Its totient is φ = 44478816165632.

The previous prime is 111200112200987. The next prime is 111200112201029. The reversal of 111200112201020 is 20102211002111.

It is a junction number, because it is equal to n+sod(n) for n = 111200112200986 and 111200112201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200112201029) 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, 76052390 + ... + 77500749.

It is an arithmetic number, because the mean of its divisors is an integer number (9730278598950).

Almost surely, 2^{111200112201020} is an apocalyptic number.

111200112201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111200112201020 is an abundant number, since it is smaller than the sum of its proper divisors (122326574173780).

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

111200112201020 is a wasteful number, since it uses less digits than its factorization.

111200112201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153589357 (or 153589355 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111200112201020 its reverse (20102211002111), we get a palindrome (131302323203131).

The spelling of 111200112201020 in words is "one hundred eleven trillion, two hundred billion, one hundred twelve million, two hundred one thousand, twenty".