1000200100100 has 36 divisors (see below), whose sum is σ = 2170928788644. Its totient is φ = 399988874880.

The previous prime is 1000200100091. The next prime is 1000200100103. The reversal of 1000200100100 is 10010020001.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 4611224836 + 995588875264 = 67906^2 + 997792^2 .

It is a Harshad number since it is a multiple of its sum of digits (5).

It is not an unprimeable number, because it can be changed into a prime (1000200100103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 697667 + ... + 1577066.

Almost surely, 2^{1000200100100} is an apocalyptic number.

1000200100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000200100100 is an abundant number, since it is smaller than the sum of its proper divisors (1170728688544).

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

1000200100100 is a wasteful number, since it uses less digits than its factorization.

1000200100100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279144 (or 2279137 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

Adding to 1000200100100 its reverse (10010020001), we get a palindrome (1010210120101).

The spelling of 1000200100100 in words is "one trillion, two hundred million, one hundred thousand, one hundred".