201020122001121 has 8 divisors (see below), whose sum is σ = 268026964411584. Its totient is φ = 134013347129040.

The previous prime is 201020122001117. The next prime is 201020122001123. The reversal of 201020122001121 is 121100221020102.

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

It is not a de Polignac number, because 201020122001121 - 2² = 201020122001117 is a prime.

It is a super-2 number, since 2×201020122001121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201020122001121.

It is not an unprimeable number, because it can be changed into a prime (201020122001123) 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, 9475210 + ... + 22177011.

It is an arithmetic number, because the mean of its divisors is an integer number (33503370551448).

Almost surely, 2^{201020122001121} is an apocalyptic number.

It is an amenable number.

201020122001121 is a deficient number, since it is larger than the sum of its proper divisors (67006842410463).

201020122001121 is a wasteful number, since it uses less digits than its factorization.

201020122001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33769191.

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

Adding to 201020122001121 its reverse (121100221020102), we get a palindrome (322120343021223).

The spelling of 201020122001121 in words is "two hundred one trillion, twenty billion, one hundred twenty-two million, one thousand, one hundred twenty-one".