201020021122001 has 4 divisors (see below), whose sum is σ = 201114352433904. Its totient is φ = 200925689810100.

The previous prime is 201020021121979. The next prime is 201020021122049. The reversal of 201020021122001 is 100221120020102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201020021122001 - 2³⁰ = 201018947380177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201020021122051) 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 3 ways as a sum of consecutive naturals, for example, 47165652755 + ... + 47165657016.

It is an arithmetic number, because the mean of its divisors is an integer number (50278588108476).

Almost surely, 2^{201020021122001} is an apocalyptic number.

It is an amenable number.

201020021122001 is a deficient number, since it is larger than the sum of its proper divisors (94331311903).

201020021122001 is an equidigital number, since it uses as much as digits as its factorization.

201020021122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94331311902.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201020021122001 its reverse (100221120020102), we get a palindrome (301241141142103).

The spelling of 201020021122001 in words is "two hundred one trillion, twenty billion, twenty-one million, one hundred twenty-two thousand, one".