21114141244111 has 4 divisors (see below), whose sum is σ = 21253969994224. Its totient is φ = 20974312494000.

The previous prime is 21114141244051. The next prime is 21114141244139. The reversal of 21114141244111 is 11144214141112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21114141244111 - 2¹⁵ = 21114141211343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21114141244111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114141244171) 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 3 ways as a sum of consecutive naturals, for example, 69914374830 + ... + 69914375131.

It is an arithmetic number, because the mean of its divisors is an integer number (5313492498556).

Almost surely, 2^{21114141244111} is an apocalyptic number.

21114141244111 is a deficient number, since it is larger than the sum of its proper divisors (139828750113).

21114141244111 is a wasteful number, since it uses less digits than its factorization.

21114141244111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139828750112.

The product of its digits is 1024, while the sum is 28.

Adding to 21114141244111 its reverse (11144214141112), we get a palindrome (32258355385223).

The spelling of 21114141244111 in words is "twenty-one trillion, one hundred fourteen billion, one hundred forty-one million, two hundred forty-four thousand, one hundred eleven".