2021021404241 has 4 divisors (see below), whose sum is σ = 2309738747712. Its totient is φ = 1732304060772.

The previous prime is 2021021404219. The next prime is 2021021404253. The reversal of 2021021404241 is 1424041201202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2021021404241 - 2⁶ = 2021021404177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021021404201) 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 3 ways as a sum of consecutive naturals, for example, 144358671725 + ... + 144358671738.

It is an arithmetic number, because the mean of its divisors is an integer number (577434686928).

Almost surely, 2^{2021021404241} is an apocalyptic number.

It is an amenable number.

2021021404241 is a deficient number, since it is larger than the sum of its proper divisors (288717343471).

2021021404241 is an equidigital number, since it uses as much as digits as its factorization.

2021021404241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288717343470.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 2021021404241 its reverse (1424041201202), we get a palindrome (3445062605443).

The spelling of 2021021404241 in words is "two trillion, twenty-one billion, twenty-one million, four hundred four thousand, two hundred forty-one".