20211330424441 has 32 divisors (see below), whose sum is σ = 24348365475840. Its totient is φ = 16592959681536.

The previous prime is 20211330424403. The next prime is 20211330424471. The reversal of 20211330424441 is 14442403311202.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20211330424441 is a prime.

It is a super-3 number, since 3×20211330424441³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20211330424471) 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 31 ways as a sum of consecutive naturals, for example, 33247561 + ... + 33850006.

It is an arithmetic number, because the mean of its divisors is an integer number (760886421120).

Almost surely, 2^{20211330424441} is an apocalyptic number.

It is an amenable number.

20211330424441 is a deficient number, since it is larger than the sum of its proper divisors (4137035051399).

20211330424441 is a wasteful number, since it uses less digits than its factorization.

20211330424441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67097673.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 20211330424441 its reverse (14442403311202), we get a palindrome (34653733735643).

The spelling of 20211330424441 in words is "twenty trillion, two hundred eleven billion, three hundred thirty million, four hundred twenty-four thousand, four hundred forty-one".