201021120201 has 16 divisors (see below), whose sum is σ = 292436457408. Its totient is φ = 121813440000.

The previous prime is 201021120149. The next prime is 201021120203. The reversal of 201021120201 is 102021120102.

It is not a de Polignac number, because 201021120201 - 2¹⁴ = 201021103817 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201021120203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204016 + ... + 666081.

It is an arithmetic number, because the mean of its divisors is an integer number (18277278588).

Almost surely, 2^201021120201 is an apocalyptic number.

It is an amenable number.

201021120201 is a deficient number, since it is larger than the sum of its proper divisors (91415337207).

201021120201 is a wasteful number, since it uses less digits than its factorization.

201021120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877112.

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

Adding to 201021120201 its reverse (102021120102), we get a palindrome (303042240303).

Subtracting from 201021120201 its reverse (102021120102), we obtain a palindrome (99000000099).

The spelling of 201021120201 in words is "two hundred one billion, twenty-one million, one hundred twenty thousand, two hundred one".