201020222021201 has 16 divisors (see below), whose sum is σ = 223287312398400. Its totient is φ = 179426209766400.

The previous prime is 201020222021173. The next prime is 201020222021237. The reversal of 201020222021201 is 102120222020102.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201020222021201 is a prime.

It is a super-2 number, since 2×201020222021201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201020222021201.

It is not an unprimeable number, because it can be changed into a prime (201020222021401) 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, 190907840 + ... + 191957921.

It is an arithmetic number, because the mean of its divisors is an integer number (13955457024900).

Almost surely, 2^{201020222021201} is an apocalyptic number.

It is an amenable number.

201020222021201 is a deficient number, since it is larger than the sum of its proper divisors (22267090377199).

201020222021201 is a wasteful number, since it uses less digits than its factorization.

201020222021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382866640.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201020222021201 its reverse (102120222020102), we get a palindrome (303140444041303).

The spelling of 201020222021201 in words is "two hundred one trillion, twenty billion, two hundred twenty-two million, twenty-one thousand, two hundred one".