2001820200200 has 48 divisors (see below), whose sum is σ = 4706526748500. Its totient is φ = 791731128320.

The previous prime is 2001820200167. The next prime is 2001820200227. The reversal of 2001820200200 is 20020281002.

It can be written as a sum of positive squares in 6 ways, for example, as 37410522724 + 1964409677476 = 193418^2 + 1401574^2 .

It is a super-2 number, since 2×2001820200200² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56213105 + ... + 56248704.

Almost surely, 2^{2001820200200} is an apocalyptic number.

2001820200200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001820200200 is an abundant number, since it is smaller than the sum of its proper divisors (2704706548300).

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

2001820200200 is a wasteful number, since it uses less digits than its factorization.

2001820200200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112461914 (or 112461905 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2001820200200 its reverse (20020281002), we get a palindrome (2021840481202).

The spelling of 2001820200200 in words is "two trillion, one billion, eight hundred twenty million, two hundred thousand, two hundred".