20201100101 has 24 divisors (see below), whose sum is σ = 25500160224. Its totient is φ = 15861212640.

The previous prime is 20201100091. The next prime is 20201100107. The reversal of 20201100101 is 10100110202.

It is not a de Polignac number, because 20201100101 - 2¹⁰ = 20201099077 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201100107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37595 + ... + 204488.

It is an arithmetic number, because the mean of its divisors is an integer number (1062506676).

Almost surely, 2^20201100101 is an apocalyptic number.

It is an amenable number.

20201100101 is a deficient number, since it is larger than the sum of its proper divisors (5299060123).

20201100101 is a wasteful number, since it uses less digits than its factorization.

20201100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242241 (or 242234 counting only the distinct ones).

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

Adding to 20201100101 its reverse (10100110202), we get a palindrome (30301210303).

The spelling of 20201100101 in words is "twenty billion, two hundred one million, one hundred thousand, one hundred one".