20201121121095 has 24 divisors (see below), whose sum is σ = 35015571785376. Its totient is φ = 10773840441408.

The previous prime is 20201121121091. The next prime is 20201121121183. The reversal of 20201121121095 is 59012112110202.

It is not a de Polignac number, because 20201121121095 - 2² = 20201121121091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201121121091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3686014 + ... + 7347716.

It is an arithmetic number, because the mean of its divisors is an integer number (1458982157724).

Almost surely, 2^{20201121121095} is an apocalyptic number.

20201121121095 is a deficient number, since it is larger than the sum of its proper divisors (14814450664281).

20201121121095 is a wasteful number, since it uses less digits than its factorization.

20201121121095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3784311 (or 3784308 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

Adding to 20201121121095 its reverse (59012112110202), we get a palindrome (79213233231297).

The spelling of 20201121121095 in words is "twenty trillion, two hundred one billion, one hundred twenty-one million, one hundred twenty-one thousand, ninety-five".