21441512332111 has 8 divisors (see below), whose sum is σ = 21945404947664. Its totient is φ = 20937858480000.

The previous prime is 21441512332109. The next prime is 21441512332157. The reversal of 21441512332111 is 11123321514412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21441512332111 - 2¹ = 21441512332109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21441512338111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59509140 + ... + 59868361.

It is an arithmetic number, because the mean of its divisors is an integer number (2743175618458).

Almost surely, 2^{21441512332111} is an apocalyptic number.

21441512332111 is a deficient number, since it is larger than the sum of its proper divisors (503892615553).

21441512332111 is a wasteful number, since it uses less digits than its factorization.

21441512332111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119381721.

The product of its digits is 5760, while the sum is 31.

Adding to 21441512332111 its reverse (11123321514412), we get a palindrome (32564833846523).

The spelling of 21441512332111 in words is "twenty-one trillion, four hundred forty-one billion, five hundred twelve million, three hundred thirty-two thousand, one hundred eleven".