20201201101121 has 16 divisors (see below), whose sum is σ = 20633090886720. Its totient is φ = 19771238859840.

The previous prime is 20201201101079. The next prime is 20201201101127. The reversal of 20201201101121 is 12110110210202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20201201101121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20201201101096 and 20201201101105.

It is not an unprimeable number, because it can be changed into a prime (20201201101127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43303091 + ... + 43767111.

It is an arithmetic number, because the mean of its divisors is an integer number (1289568180420).

Almost surely, 2^{20201201101121} is an apocalyptic number.

It is an amenable number.

20201201101121 is a deficient number, since it is larger than the sum of its proper divisors (431889785599).

20201201101121 is a wasteful number, since it uses less digits than its factorization.

20201201101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466096.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20201201101121 its reverse (12110110210202), we get a palindrome (32311311311323).

The spelling of 20201201101121 in words is "twenty trillion, two hundred one billion, two hundred one million, one hundred one thousand, one hundred twenty-one".