21114224421113 has 4 divisors (see below), whose sum is σ = 21114233614500. Its totient is φ = 21114215227728.

The previous prime is 21114224421083. The next prime is 21114224421179. The reversal of 21114224421113 is 31112442241112.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 17629610730169 + 3484613690944 = 4198763^2 + 1866712^2 .

It is a cyclic number.

It is not a de Polignac number, because 21114224421113 - 2³² = 21109929453817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21114224421193) 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, 2112431 + ... + 6833067.

It is an arithmetic number, because the mean of its divisors is an integer number (5278558403625).

Almost surely, 2^{21114224421113} is an apocalyptic number.

It is an amenable number.

21114224421113 is a deficient number, since it is larger than the sum of its proper divisors (9193387).

21114224421113 is an equidigital number, since it uses as much as digits as its factorization.

21114224421113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9193386.

The product of its digits is 3072, while the sum is 29.

Adding to 21114224421113 its reverse (31112442241112), we get a palindrome (52226666662225).

The spelling of 21114224421113 in words is "twenty-one trillion, one hundred fourteen billion, two hundred twenty-four million, four hundred twenty-one thousand, one hundred thirteen".