21114224421193 has 2 divisors, whose sum is σ = 21114224421194. Its totient is φ = 21114224421192.

The previous prime is 21114224421187. The next prime is 21114224421217. The reversal of 21114224421193 is 39112442241112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18097222170889 + 3017002250304 = 4254083^2 + 1736952^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21114224421193 is a prime.

It is not a weakly prime, because it can be changed into another prime (21114224421593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10557112210596 + 10557112210597.

It is an arithmetic number, because the mean of its divisors is an integer number (10557112210597).

Almost surely, 2^{21114224421193} is an apocalyptic number.

It is an amenable number.

21114224421193 is a deficient number, since it is larger than the sum of its proper divisors (1).

21114224421193 is an equidigital number, since it uses as much as digits as its factorization.

21114224421193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 37.

The spelling of 21114224421193 in words is "twenty-one trillion, one hundred fourteen billion, two hundred twenty-four million, four hundred twenty-one thousand, one hundred ninety-three".