21114342245 has 32 divisors (see below), whose sum is σ = 26615846400. Its totient is φ = 16065713664.

The previous prime is 21114342239. The next prime is 21114342247. The reversal of 21114342245 is 54224341112.

It is a happy number.

It is not a de Polignac number, because 21114342245 - 2¹⁴ = 21114325861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114342247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1231391 + ... + 1248419.

It is an arithmetic number, because the mean of its divisors is an integer number (831745200).

Almost surely, 2^21114342245 is an apocalyptic number.

It is an amenable number.

21114342245 is a deficient number, since it is larger than the sum of its proper divisors (5501504155).

21114342245 is a wasteful number, since it uses less digits than its factorization.

21114342245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17229.

The product of its digits is 7680, while the sum is 29.

Adding to 21114342245 its reverse (54224341112), we get a palindrome (75338683357).

The spelling of 21114342245 in words is "twenty-one billion, one hundred fourteen million, three hundred forty-two thousand, two hundred forty-five".