201021110020201 has 4 divisors (see below), whose sum is σ = 201135391494400. Its totient is φ = 200906828546004.

The previous prime is 201021110020193. The next prime is 201021110020279. The reversal of 201021110020201 is 102020011120102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201021110020201 - 2³ = 201021110020193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201021110020301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57140734461 + ... + 57140737978.

It is an arithmetic number, because the mean of its divisors is an integer number (50283847873600).

Almost surely, 2^{201021110020201} is an apocalyptic number.

It is an amenable number.

201021110020201 is a deficient number, since it is larger than the sum of its proper divisors (114281474199).

201021110020201 is a wasteful number, since it uses less digits than its factorization.

201021110020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114281474198.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201021110020201 its reverse (102020011120102), we get a palindrome (303041121140303).

The spelling of 201021110020201 in words is "two hundred one trillion, twenty-one billion, one hundred ten million, twenty thousand, two hundred one".