201020102000121 has 16 divisors (see below), whose sum is σ = 275272034048000. Its totient is φ = 130390818899328.

The previous prime is 201020102000111. The next prime is 201020102000141. The reversal of 201020102000121 is 121000201020102.

It is not a de Polignac number, because 201020102000121 - 2¹⁰ = 201020101999097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201020102000097 and 201020102000106.

It is not an unprimeable number, because it can be changed into a prime (201020102000111) 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, 20802120 + ... + 28892358.

It is an arithmetic number, because the mean of its divisors is an integer number (17204502128000).

Almost surely, 2^{201020102000121} is an apocalyptic number.

It is an amenable number.

201020102000121 is a deficient number, since it is larger than the sum of its proper divisors (74251932047879).

201020102000121 is a wasteful number, since it uses less digits than its factorization.

201020102000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8314128.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201020102000121 its reverse (121000201020102), we get a palindrome (322020303020223).

The spelling of 201020102000121 in words is "two hundred one trillion, twenty billion, one hundred two million, one hundred twenty-one", and thus it is an aban number.