14022221 has 2 divisors, whose sum is σ = 14022222. Its totient is φ = 14022220.

The previous prime is 14022193. The next prime is 14022271. The reversal of 14022221 is 12222041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10465225 + 3556996 = 3235^2 + 1886^2 .

It is a cyclic number.

It is not a de Polignac number, because 14022221 - 2¹⁰ = 14021197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14022196 and 14022205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14022271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7011110 + 7011111.

It is an arithmetic number, because the mean of its divisors is an integer number (7011111).

Almost surely, 2^14022221 is an apocalyptic number.

It is an amenable number.

14022221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14022221 is an equidigital number, since it uses as much as digits as its factorization.

14022221 is an odious number, because the sum of its binary digits is odd.

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

The square root of 14022221 is about 3744.6256154654. The cubic root of 14022221 is about 241.1416727541.

Adding to 14022221 its reverse (12222041), we get a palindrome (26244262).

The spelling of 14022221 in words is "fourteen million, twenty-two thousand, two hundred twenty-one".