20212002012001 has 16 divisors (see below), whose sum is σ = 21358950177600. Its totient is φ = 19126472080320.

The previous prime is 20212002011911. The next prime is 20212002012049. The reversal of 20212002012001 is 10021020021202.

It is a happy number.

It is not a de Polignac number, because 20212002012001 - 2²¹ = 20211999914849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212002013001) 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, 4370370 + ... + 7715188.

It is an arithmetic number, because the mean of its divisors is an integer number (1334934386100).

Almost surely, 2^{20212002012001} is an apocalyptic number.

It is an amenable number.

20212002012001 is a deficient number, since it is larger than the sum of its proper divisors (1146948165599).

20212002012001 is an frugal number, since it uses more digits than its factorization.

20212002012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3345757 (or 3345719 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20212002012001 its reverse (10021020021202), we get a palindrome (30233022033203).

The spelling of 20212002012001 in words is "twenty trillion, two hundred twelve billion, two million, twelve thousand, one".