1000021100200 has 48 divisors (see below), whose sum is σ = 2461816657980. Its totient is φ = 376478530560.

The previous prime is 1000021100191. The next prime is 1000021100201. The reversal of 1000021100200 is 20011200001.

1000021100200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 585344346084 + 414676754116 = 765078^2 + 643954^2 .

It is not an unprimeable number, because it can be changed into a prime (1000021100201) 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, 147058527 + ... + 147065326.

Almost surely, 2^{1000021100200} is an apocalyptic number.

1000021100200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000021100200 is an abundant number, since it is smaller than the sum of its proper divisors (1461795557780).

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

1000021100200 is a wasteful number, since it uses less digits than its factorization.

1000021100200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294123886 (or 294123877 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 1000021100200 its reverse (20011200001), we get a palindrome (1020032300201).

The spelling of 1000021100200 in words is "one trillion, twenty-one million, one hundred thousand, two hundred".