200020000010100 has 144 divisors (see below), whose sum is σ = 580556708659200. Its totient is φ = 53169865297920.

The previous prime is 200020000010099. The next prime is 200020000010101. The reversal of 200020000010100 is 1010000020002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (200020000010099) and next prime (200020000010101).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200020000010101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 517337656 + ... + 517724144.

Almost surely, 2^{200020000010100} is an apocalyptic number.

200020000010100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200020000010100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290278354329600).

200020000010100 is an abundant number, since it is smaller than the sum of its proper divisors (380536708649100).

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

200020000010100 is a wasteful number, since it uses less digits than its factorization.

200020000010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391962 (or 391955 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 200020000010100 its reverse (1010000020002), we get a palindrome (201030000030102).

The spelling of 200020000010100 in words is "two hundred trillion, twenty billion, ten thousand, one hundred".