20200121200200 has 96 divisors (see below), whose sum is σ = 62821727991360. Its totient is φ = 5369378361600.

The previous prime is 20200121200183. The next prime is 20200121200219. The reversal of 20200121200200 is 200212100202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53940199 + ... + 54313398.

It is an arithmetic number, because the mean of its divisors is an integer number (654392999910).

Almost surely, 2^{20200121200200} is an apocalyptic number.

20200121200200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200121200200 is an abundant number, since it is smaller than the sum of its proper divisors (42621606791160).

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

20200121200200 is a wasteful number, since it uses less digits than its factorization.

20200121200200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108253927 (or 108253918 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20200121200200 its reverse (200212100202), we get a palindrome (20400333300402).

The spelling of 20200121200200 in words is "twenty trillion, two hundred billion, one hundred twenty-one million, two hundred thousand, two hundred".