21441120222401 has 20 divisors (see below), whose sum is σ = 23635596731760. Its totient is φ = 19450182669720.

The previous prime is 21441120222373. The next prime is 21441120222413. The reversal of 21441120222401 is 10422202114412.

It is not a de Polignac number, because 21441120222401 - 2³⁸ = 21166242315457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21441120222101) 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 19 ways as a sum of consecutive naturals, for example, 5269406 + ... + 8405288.

It is an arithmetic number, because the mean of its divisors is an integer number (1181779836588).

Almost surely, 2^{21441120222401} is an apocalyptic number.

It is an amenable number.

21441120222401 is a deficient number, since it is larger than the sum of its proper divisors (2194476509359).

21441120222401 is an frugal number, since it uses more digits than its factorization.

21441120222401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136394 (or 3136361 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 21441120222401 its reverse (10422202114412), we get a palindrome (31863322336813).

The spelling of 21441120222401 in words is "twenty-one trillion, four hundred forty-one billion, one hundred twenty million, two hundred twenty-two thousand, four hundred one".