2021341445441 has 4 divisors (see below), whose sum is σ = 2055601470000. Its totient is φ = 1987081420884.

The previous prime is 2021341445399. The next prime is 2021341445471. The reversal of 2021341445441 is 1445441431202.

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 a de Polignac number, because none of the positive numbers 2^k-2021341445441 is a prime.

It is a super-2 number, since 2×2021341445441² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021341445471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17130012191 + ... + 17130012308.

It is an arithmetic number, because the mean of its divisors is an integer number (513900367500).

Almost surely, 2^{2021341445441} is an apocalyptic number.

It is an amenable number.

2021341445441 is a deficient number, since it is larger than the sum of its proper divisors (34260024559).

2021341445441 is an equidigital number, since it uses as much as digits as its factorization.

2021341445441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34260024558.

The product of its (nonzero) digits is 61440, while the sum is 35.

Adding to 2021341445441 its reverse (1445441431202), we get a palindrome (3466782876643).

The spelling of 2021341445441 in words is "two trillion, twenty-one billion, three hundred forty-one million, four hundred forty-five thousand, four hundred forty-one".