201100100201 has 32 divisors (see below), whose sum is σ = 272682014976. Its totient is φ = 143215200000.

The previous prime is 201100100197. The next prime is 201100100209. The reversal of 201100100201 is 102001001102.

It is a cyclic number.

It is not a de Polignac number, because 201100100201 - 2² = 201100100197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201100100209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 893450 + ... + 1095651.

It is an arithmetic number, because the mean of its divisors is an integer number (8521312968).

Almost surely, 2^201100100201 is an apocalyptic number.

It is an amenable number.

201100100201 is a deficient number, since it is larger than the sum of its proper divisors (71581914775).

201100100201 is a wasteful number, since it uses less digits than its factorization.

201100100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989233.

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

Adding to 201100100201 its reverse (102001001102), we get a palindrome (303101101303).

Subtracting from 201100100201 its reverse (102001001102), we obtain a palindrome (99099099099).

The spelling of 201100100201 in words is "two hundred one billion, one hundred million, one hundred thousand, two hundred one".