200001111120020 has 36 divisors (see below), whose sum is σ = 488574142881300. Its totient is φ = 68571809526528.

The previous prime is 200001111120007. The next prime is 200001111120023. The reversal of 200001111120020 is 20021111100002.

It can be written as a sum of positive squares in 2 ways, for example, as 50324580616324 + 149676530503696 = 7093982^2 + 12234236^2 .

It is a junction number, because it is equal to n+sod(n) for n = 200001111119983 and 200001111120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200001111120023) 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, 102041382245 + ... + 102041384204.

It is an arithmetic number, because the mean of its divisors is an integer number (13571503968925).

Almost surely, 2^{200001111120020} is an apocalyptic number.

200001111120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200001111120020 is an abundant number, since it is smaller than the sum of its proper divisors (288573031761280).

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

200001111120020 is a wasteful number, since it uses less digits than its factorization.

200001111120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204082766472 (or 204082766463 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 200001111120020 its reverse (20021111100002), we get a palindrome (220022222220022).

The spelling of 200001111120020 in words is "two hundred trillion, one billion, one hundred eleven million, one hundred twenty thousand, twenty".