14254421221 has 2 divisors, whose sum is σ = 14254421222. Its totient is φ = 14254421220.

The previous prime is 14254421201. The next prime is 14254421317. The reversal of 14254421221 is 12212445241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14253016996 + 1404225 = 119386^2 + 1185^2 .

It is a cyclic number.

It is not a de Polignac number, because 14254421221 - 2¹³ = 14254413029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14254421221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14254421201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7127210610 + 7127210611.

It is an arithmetic number, because the mean of its divisors is an integer number (7127210611).

Almost surely, 2^14254421221 is an apocalyptic number.

It is an amenable number.

14254421221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14254421221 is an equidigital number, since it uses as much as digits as its factorization.

14254421221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5120, while the sum is 28.

Adding to 14254421221 its reverse (12212445241), we get a palindrome (26466866462).

The spelling of 14254421221 in words is "fourteen billion, two hundred fifty-four million, four hundred twenty-one thousand, two hundred twenty-one".