21014616299 has 2 divisors, whose sum is σ = 21014616300. Its totient is φ = 21014616298.

The previous prime is 21014616277. The next prime is 21014616307. The reversal of 21014616299 is 99261641012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21014616299 is a prime.

It is a super-2 number, since 2×21014616299² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (21014616599) 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 as a sum of consecutive naturals, namely, 10507308149 + 10507308150.

It is an arithmetic number, because the mean of its divisors is an integer number (10507308150).

Almost surely, 2^21014616299 is an apocalyptic number.

21014616299 is a deficient number, since it is larger than the sum of its proper divisors (1).

21014616299 is an equidigital number, since it uses as much as digits as its factorization.

21014616299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 21014616299 in words is "twenty-one billion, fourteen million, six hundred sixteen thousand, two hundred ninety-nine".