200112121020020 has 96 divisors (see below), whose sum is σ = 460935214903296. Its totient is φ = 72372253161600.

The previous prime is 200112121019981. The next prime is 200112121020101. The reversal of 200112121020020 is 20020121211002.

It is a super-2 number, since 2×200112121020020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200112121019977 and 200112121020004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64540937 + ... + 67570383.

It is an arithmetic number, because the mean of its divisors is an integer number (4801408488576).

Almost surely, 2^{200112121020020} is an apocalyptic number.

200112121020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200112121020020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230467607451648).

200112121020020 is an abundant number, since it is smaller than the sum of its proper divisors (260823093883276).

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

200112121020020 is a wasteful number, since it uses less digits than its factorization.

200112121020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3031101 (or 3031099 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200112121020020 its reverse (20020121211002), we get a palindrome (220132242231022).

The spelling of 200112121020020 in words is "two hundred trillion, one hundred twelve billion, one hundred twenty-one million, twenty thousand, twenty".