21114403122041 has 4 divisors (see below), whose sum is σ = 21629388564084. Its totient is φ = 20599417680000.

The previous prime is 21114403122019. The next prime is 21114403122047. The reversal of 21114403122041 is 14022130441112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8972690748025 + 12141712374016 = 2995445^2 + 3484496^2 .

It is a cyclic number.

It is not a de Polignac number, because 21114403122041 - 2³⁰ = 21113329380217 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 21114403122041.

It is not an unprimeable number, because it can be changed into a prime (21114403122047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257492720960 + ... + 257492721041.

It is an arithmetic number, because the mean of its divisors is an integer number (5407347141021).

Almost surely, 2^{21114403122041} is an apocalyptic number.

It is an amenable number.

21114403122041 is a deficient number, since it is larger than the sum of its proper divisors (514985442043).

21114403122041 is an equidigital number, since it uses as much as digits as its factorization.

21114403122041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514985442042.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 21114403122041 its reverse (14022130441112), we get a palindrome (35136533563153).

The spelling of 21114403122041 in words is "twenty-one trillion, one hundred fourteen billion, four hundred three million, one hundred twenty-two thousand, forty-one".