20210101200112 has 160 divisors (see below), whose sum is σ = 41821876800000. Its totient is φ = 9434237598720.

The previous prime is 20210101200097. The next prime is 20210101200119. The reversal of 20210101200112 is 21100210101202.

It is a junction number, because it is equal to n+sod(n) for n = 20210101200092 and 20210101200101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210101200119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3362183187 + ... + 3362189197.

It is an arithmetic number, because the mean of its divisors is an integer number (261386730000).

Almost surely, 2^{20210101200112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20210101200112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20910938400000).

20210101200112 is an abundant number, since it is smaller than the sum of its proper divisors (21611775599888).

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

20210101200112 is a wasteful number, since it uses less digits than its factorization.

20210101200112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6759 (or 6753 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20210101200112 its reverse (21100210101202), we get a palindrome (41310311301314).

The spelling of 20210101200112 in words is "twenty trillion, two hundred ten billion, one hundred one million, two hundred thousand, one hundred twelve".