200001110021 has 16 divisors (see below), whose sum is σ = 203694150000. Its totient is φ = 196348478976.

The previous prime is 200001109993. The next prime is 200001110027. The reversal of 200001110021 is 120011100002.

It can be written as a sum of positive squares in 8 ways, for example, as 571879396 + 199429230625 = 23914^2 + 446575^2 .

It is a cyclic number.

It is not a de Polignac number, because 200001110021 - 2¹⁴ = 200001093637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200001109990 and 200001110008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200001110027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6627515 + ... + 6657623.

It is an arithmetic number, because the mean of its divisors is an integer number (12730884375).

Almost surely, 2^200001110021 is an apocalyptic number.

It is an amenable number.

200001110021 is a deficient number, since it is larger than the sum of its proper divisors (3693039979).

200001110021 is a wasteful number, since it uses less digits than its factorization.

200001110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30776.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 200001110021 its reverse (120011100002), we get a palindrome (320012210023).

The spelling of 200001110021 in words is "two hundred billion, one million, one hundred ten thousand, twenty-one".