201121021100201 has 16 divisors (see below), whose sum is σ = 204038426908800. Its totient is φ = 198205984704000.

The previous prime is 201121021100189. The next prime is 201121021100257. The reversal of 201121021100201 is 102001120121102.

It is a cyclic number.

It is not a de Polignac number, because 201121021100201 - 2¹⁴ = 201121021083817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201121021100281) 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, 1919023001 + ... + 1919127801.

It is an arithmetic number, because the mean of its divisors is an integer number (12752401681800).

Almost surely, 2^{201121021100201} is an apocalyptic number.

It is an amenable number.

201121021100201 is a deficient number, since it is larger than the sum of its proper divisors (2917405808599).

201121021100201 is a wasteful number, since it uses less digits than its factorization.

201121021100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115840.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201121021100201 its reverse (102001120121102), we get a palindrome (303122141221303).

The spelling of 201121021100201 in words is "two hundred one trillion, one hundred twenty-one billion, twenty-one million, one hundred thousand, two hundred one".