201021102121201 has 8 divisors (see below), whose sum is σ = 216103312471680. Its totient is φ = 186389107005168.

The previous prime is 201021102121183. The next prime is 201021102121253. The reversal of 201021102121201 is 102121201120102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201021102121201 - 2¹³ = 201021102113009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201021102181201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112553807686 + ... + 112553809471.

It is an arithmetic number, because the mean of its divisors is an integer number (27012914058960).

Almost surely, 2^{201021102121201} is an apocalyptic number.

It is an amenable number.

201021102121201 is a deficient number, since it is larger than the sum of its proper divisors (15082210350479).

201021102121201 is a wasteful number, since it uses less digits than its factorization.

201021102121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225107617223.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201021102121201 its reverse (102121201120102), we get a palindrome (303142303241303).

The spelling of 201021102121201 in words is "two hundred one trillion, twenty-one billion, one hundred two million, one hundred twenty-one thousand, two hundred one".