20201121012201 has 32 divisors (see below), whose sum is σ = 29469561354240. Its totient is φ = 12264211975104.

The previous prime is 20201121012181. The next prime is 20201121012211. The reversal of 20201121012201 is 10221012110202.

It is not a de Polignac number, because 20201121012201 - 2¹⁷ = 20201120881129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20201121012211) 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 31 ways as a sum of consecutive naturals, for example, 57526945 + ... + 57877038.

It is an arithmetic number, because the mean of its divisors is an integer number (920923792320).

Almost surely, 2^{20201121012201} is an apocalyptic number.

It is an amenable number.

20201121012201 is a deficient number, since it is larger than the sum of its proper divisors (9268440342039).

20201121012201 is a wasteful number, since it uses less digits than its factorization.

20201121012201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115404125.

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

Adding to 20201121012201 its reverse (10221012110202), we get a palindrome (30422133122403).

The spelling of 20201121012201 in words is "twenty trillion, two hundred one billion, one hundred twenty-one million, twelve thousand, two hundred one".