2021021001201 has 16 divisors (see below), whose sum is σ = 2872426035200. Its totient is φ = 1260276917328.

The previous prime is 2021021001119. The next prime is 2021021001227. The reversal of 2021021001201 is 1021001201202.

It is not a de Polignac number, because 2021021001201 - 2¹⁸ = 2021020739057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021021001271) 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, 224403781 + ... + 224412786.

It is an arithmetic number, because the mean of its divisors is an integer number (179526627200).

Almost surely, 2^{2021021001201} is an apocalyptic number.

It is an amenable number.

2021021001201 is a deficient number, since it is larger than the sum of its proper divisors (851405033999).

2021021001201 is a wasteful number, since it uses less digits than its factorization.

2021021001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448816668.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2021021001201 its reverse (1021001201202), we get a palindrome (3042022202403).

It can be divided in two parts, 202 and 1021001201, that multiplied together give a palindrome (206242242602).

The spelling of 2021021001201 in words is "two trillion, twenty-one billion, twenty-one million, one thousand, two hundred one".