201021020122201 has 8 divisors (see below), whose sum is σ = 202227919185600. Its totient is φ = 199817525570640.

The previous prime is 201021020122199. The next prime is 201021020122207. The reversal of 201021020122201 is 102221020120102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 201021020122201 - 2¹ = 201021020122199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201021020122207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 851009515 + ... + 851245696.

It is an arithmetic number, because the mean of its divisors is an integer number (25278489898200).

Almost surely, 2^{201021020122201} is an apocalyptic number.

It is an amenable number.

201021020122201 is a deficient number, since it is larger than the sum of its proper divisors (1206899063399).

201021020122201 is a wasteful number, since it uses less digits than its factorization.

201021020122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702255919.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201021020122201 its reverse (102221020120102), we get a palindrome (303242040242303).

The spelling of 201021020122201 in words is "two hundred one trillion, twenty-one billion, twenty million, one hundred twenty-two thousand, two hundred one".