20200121200112 has 80 divisors (see below), whose sum is σ = 47362940809920. Its totient is φ = 8147433160704.

The previous prime is 20200121200111. The next prime is 20200121200121. The reversal of 20200121200112 is 21100212100202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200121200111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30550064 + ... + 31204272.

It is an arithmetic number, because the mean of its divisors is an integer number (592036760124).

Almost surely, 2^{20200121200112} is an apocalyptic number.

It is an amenable number.

20200121200112 is an abundant number, since it is smaller than the sum of its proper divisors (27162819609808).

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

20200121200112 is a wasteful number, since it uses less digits than its factorization.

20200121200112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670458 (or 670452 counting only the distinct ones).

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

Adding to 20200121200112 its reverse (21100212100202), we get a palindrome (41300333300314).

The spelling of 20200121200112 in words is "twenty trillion, two hundred billion, one hundred twenty-one million, two hundred thousand, one hundred twelve".