14328881221 has 2 divisors, whose sum is σ = 14328881222. Its totient is φ = 14328881220.

The previous prime is 14328881111. The next prime is 14328881227. The reversal of 14328881221 is 12218882341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14087078721 + 241802500 = 118689^2 + 15550^2 .

It is a cyclic number.

It is not a de Polignac number, because 14328881221 - 2¹³ = 14328873029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14328881227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7164440610 + 7164440611.

It is an arithmetic number, because the mean of its divisors is an integer number (7164440611).

Almost surely, 2^14328881221 is an apocalyptic number.

It is an amenable number.

14328881221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14328881221 is an equidigital number, since it uses as much as digits as its factorization.

14328881221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49152, while the sum is 40.

The spelling of 14328881221 in words is "fourteen billion, three hundred twenty-eight million, eight hundred eighty-one thousand, two hundred twenty-one".