21144341224101 has 32 divisors (see below), whose sum is σ = 28883280246912. Its totient is φ = 13753903887360.

The previous prime is 21144341224099. The next prime is 21144341224117. The reversal of 21144341224101 is 10142214344112.

It is not a de Polignac number, because 21144341224101 - 2¹ = 21144341224099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21144341224001) 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, 29693241 + ... + 30396993.

It is an arithmetic number, because the mean of its divisors is an integer number (902602507716).

Almost surely, 2^{21144341224101} is an apocalyptic number.

It is an amenable number.

21144341224101 is a deficient number, since it is larger than the sum of its proper divisors (7738939022811).

21144341224101 is a wasteful number, since it uses less digits than its factorization.

21144341224101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704853.

The product of its (nonzero) digits is 6144, while the sum is 30.

Adding to 21144341224101 its reverse (10142214344112), we get a palindrome (31286555568213).

The spelling of 21144341224101 in words is "twenty-one trillion, one hundred forty-four billion, three hundred forty-one million, two hundred twenty-four thousand, one hundred one".