14202221 has 4 divisors (see below), whose sum is σ = 15493344. Its totient is φ = 12911100.

The previous prime is 14202211. The next prime is 14202229. The reversal of 14202221 is 12220241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12220241 = 11 ⋅1110931.

It is a cyclic number.

It is not a de Polignac number, because 14202221 - 2¹⁰ = 14201197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14202196 and 14202205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14202229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645545 + ... + 645566.

It is an arithmetic number, because the mean of its divisors is an integer number (3873336).

Almost surely, 2^14202221 is an apocalyptic number.

14202221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14202221 is a deficient number, since it is larger than the sum of its proper divisors (1291123).

14202221 is a wasteful number, since it uses less digits than its factorization.

14202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291122.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 14202221 is about 3768.5834208625. The cubic root of 14202221 is about 242.1691154494.

Adding to 14202221 its reverse (12220241), we get a palindrome (26422462).

The spelling of 14202221 in words is "fourteen million, two hundred two thousand, two hundred twenty-one".