201011200021 has 24 divisors (see below), whose sum is σ = 208395129600. Its totient is φ = 193857926592.

The previous prime is 201011200007. The next prime is 201011200031. The reversal of 201011200021 is 120002110102.

It is not a de Polignac number, because 201011200021 - 2⁵ = 201011199989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201011199980 and 201011200007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201011200031) 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 23 ways as a sum of consecutive naturals, for example, 83788380 + ... + 83790778.

It is an arithmetic number, because the mean of its divisors is an integer number (8683130400).

Almost surely, 2^201011200021 is an apocalyptic number.

It is an amenable number.

201011200021 is a deficient number, since it is larger than the sum of its proper divisors (7383929579).

201011200021 is an equidigital number, since it uses as much as digits as its factorization.

201011200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033 (or 2986 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 201011200021 its reverse (120002110102), we get a palindrome (321013310123).

The spelling of 201011200021 in words is "two hundred one billion, eleven million, two hundred thousand, twenty-one".