20200100200200 has 144 divisors (see below), whose sum is σ = 68270764232580. Its totient is φ = 5352383162880.

The previous prime is 20200100200187. The next prime is 20200100200237. The reversal of 20200100200200 is 200200100202.

It can be written as a sum of positive squares in 6 ways, for example, as 954103075524 + 19245997124676 = 976782^2 + 4387026^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 35457139 + ... + 36022338.

Almost surely, 2^{20200100200200} is an apocalyptic number.

20200100200200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200100200200 is an abundant number, since it is smaller than the sum of its proper divisors (48070664032380).

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

20200100200200 is a wasteful number, since it uses less digits than its factorization.

20200100200200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71479656 (or 71479644 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20200100200200 its reverse (200200100202), we get a palindrome (20400300300402).

The spelling of 20200100200200 in words is "twenty trillion, two hundred billion, one hundred million, two hundred thousand, two hundred".