201100200012021 has 16 divisors (see below), whose sum is σ = 274940995953600. Its totient is φ = 130702001445120.

The previous prime is 201100200011969. The next prime is 201100200012031. The reversal of 201100200012021 is 120210002001102.

It is not a de Polignac number, because 201100200012021 - 2³⁰ = 201099126270197 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201100200011988 and 201100200012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201100200012031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4862404971 + ... + 4862446328.

It is an arithmetic number, because the mean of its divisors is an integer number (17183812247100).

Almost surely, 2^{201100200012021} is an apocalyptic number.

It is an amenable number.

201100200012021 is a deficient number, since it is larger than the sum of its proper divisors (73840795941579).

201100200012021 is a wasteful number, since it uses less digits than its factorization.

201100200012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9724851476.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201100200012021 its reverse (120210002001102), we get a palindrome (321310202013123).

The spelling of 201100200012021 in words is "two hundred one trillion, one hundred billion, two hundred million, twelve thousand, twenty-one".