13221812063 has 2 divisors, whose sum is σ = 13221812064. Its totient is φ = 13221812062.

The previous prime is 13221812057. The next prime is 13221812069. The reversal of 13221812063 is 36021812231.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (13221812057) and next prime (13221812069).

It is an emirp because it is prime and its reverse (36021812231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13221812063 - 2¹⁰ = 13221811039 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13221812069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610906031 + 6610906032.

It is an arithmetic number, because the mean of its divisors is an integer number (6610906032).

Almost surely, 2^13221812063 is an apocalyptic number.

13221812063 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221812063 is an equidigital number, since it uses as much as digits as its factorization.

13221812063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 13221812063 in words is "thirteen billion, two hundred twenty-one million, eight hundred twelve thousand, sixty-three".