14325551221 has 4 divisors (see below), whose sum is σ = 14347489932. Its totient is φ = 14303612512.

The previous prime is 14325551213. The next prime is 14325551237. The reversal of 14325551221 is 12215552341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12215552341 = 41 ⋅297940301.

It can be written as a sum of positive squares in 2 ways, for example, as 1805060196 + 12520491025 = 42486^2 + 111895^2 .

It is a cyclic number.

It is not a de Polignac number, because 14325551221 - 2³ = 14325551213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14325551321) 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 in 3 ways as a sum of consecutive naturals, for example, 10968376 + ... + 10969681.

It is an arithmetic number, because the mean of its divisors is an integer number (3586872483).

Almost surely, 2^14325551221 is an apocalyptic number.

It is an amenable number.

14325551221 is a deficient number, since it is larger than the sum of its proper divisors (21938711).

14325551221 is an equidigital number, since it uses as much as digits as its factorization.

14325551221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21938710.

The product of its digits is 12000, while the sum is 31.

The spelling of 14325551221 in words is "fourteen billion, three hundred twenty-five million, five hundred fifty-one thousand, two hundred twenty-one".