201121121201 has 16 divisors (see below), whose sum is σ = 270036751488. Its totient is φ = 144662544000.

The previous prime is 201121121189. The next prime is 201121121293. The reversal of 201121121201 is 102121121102.

201121121201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201121121201 - 2¹⁰ = 201121120177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201121121701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100459100 + ... + 100461101.

It is an arithmetic number, because the mean of its divisors is an integer number (16877296968).

Almost surely, 2^201121121201 is an apocalyptic number.

It is an amenable number.

201121121201 is a deficient number, since it is larger than the sum of its proper divisors (68915630287).

201121121201 is a wasteful number, since it uses less digits than its factorization.

201121121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200920232.

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

Adding to 201121121201 its reverse (102121121102), we get a palindrome (303242242303).

Subtracting from 201121121201 its reverse (102121121102), we obtain a palindrome (99000000099).

The spelling of 201121121201 in words is "two hundred one billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred one".