20201012112021 has 32 divisors (see below), whose sum is σ = 29487077706240. Its totient is φ = 12226064647104.

The previous prime is 20201012112013. The next prime is 20201012112059. The reversal of 20201012112021 is 12021121010202.

It is not a de Polignac number, because 20201012112021 - 2³ = 20201012112013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201012110021) 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, 4627275 + ... + 7862168.

It is an arithmetic number, because the mean of its divisors is an integer number (921471178320).

Almost surely, 2^{20201012112021} is an apocalyptic number.

It is an amenable number.

20201012112021 is a deficient number, since it is larger than the sum of its proper divisors (9286065594219).

20201012112021 is a wasteful number, since it uses less digits than its factorization.

20201012112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12490145.

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

Adding to 20201012112021 its reverse (12021121010202), we get a palindrome (32222133122223).

The spelling of 20201012112021 in words is "twenty trillion, two hundred one billion, twelve million, one hundred twelve thousand, twenty-one".