201221211000201 has 16 divisors (see below), whose sum is σ = 306623084498304. Its totient is φ = 114983441599104.

The previous prime is 201221211000127. The next prime is 201221211000209. The reversal of 201221211000201 is 102000112122102.

201221211000201 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201221211000201 - 2¹¹ = 201221210998153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201221211000209) 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, 22201215 + ... + 29922171.

It is an arithmetic number, because the mean of its divisors is an integer number (19163942781144).

Almost surely, 2^{201221211000201} is an apocalyptic number.

201221211000201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201221211000201 is a deficient number, since it is larger than the sum of its proper divisors (105401873498103).

201221211000201 is a wasteful number, since it uses less digits than its factorization.

201221211000201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8962000.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201221211000201 its reverse (102000112122102), we get a palindrome (303221323122303).

The spelling of 201221211000201 in words is "two hundred one trillion, two hundred twenty-one billion, two hundred eleven million, two hundred one", and thus it is an aban number.