2021021210201 has 16 divisors (see below), whose sum is σ = 2436255528960. Its totient is φ = 1637787528720.

The previous prime is 2021021210191. The next prime is 2021021210233. The reversal of 2021021210201 is 1020121201202.

It is not a de Polignac number, because 2021021210201 - 2¹⁴ = 2021021193817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021021210261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15408881 + ... + 15539486.

It is an arithmetic number, because the mean of its divisors is an integer number (152265970560).

Almost surely, 2^{2021021210201} is an apocalyptic number.

It is an amenable number.

2021021210201 is a deficient number, since it is larger than the sum of its proper divisors (415234318759).

2021021210201 is a wasteful number, since it uses less digits than its factorization.

2021021210201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30948884.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2021021210201 its reverse (1020121201202), we get a palindrome (3041142411403).

The spelling of 2021021210201 in words is "two trillion, twenty-one billion, twenty-one million, two hundred ten thousand, two hundred one".