14221355 has 4 divisors (see below), whose sum is σ = 17065632. Its totient is φ = 11377080.

The previous prime is 14221327. The next prime is 14221387. The reversal of 14221355 is 55312241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55312241 = 827 ⋅66883.

It is not a de Polignac number, because 14221355 - 2¹⁶ = 14155819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14221355.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1422131 + ... + 1422140.

It is an arithmetic number, because the mean of its divisors is an integer number (4266408).

Almost surely, 2^14221355 is an apocalyptic number.

14221355 is a deficient number, since it is larger than the sum of its proper divisors (2844277).

14221355 is an equidigital number, since it uses as much as digits as its factorization.

14221355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844276.

The product of its digits is 1200, while the sum is 23.

The square root of 14221355 is about 3771.1211860666. The cubic root of 14221355 is about 242.2778210879.

Adding to 14221355 its reverse (55312241), we get a palindrome (69533596).

The spelling of 14221355 in words is "fourteen million, two hundred twenty-one thousand, three hundred fifty-five".