14224142014421 has 2 divisors, whose sum is σ = 14224142014422. Its totient is φ = 14224142014420.

The previous prime is 14224142014417. The next prime is 14224142014493. The reversal of 14224142014421 is 12441024142241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13826089539025 + 398052475396 = 3718345^2 + 630914^2 .

It is a cyclic number.

It is not a de Polignac number, because 14224142014421 - 2² = 14224142014417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14224147014421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7112071007210 + 7112071007211.

It is an arithmetic number, because the mean of its divisors is an integer number (7112071007211).

Almost surely, 2^{14224142014421} is an apocalyptic number.

It is an amenable number.

14224142014421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14224142014421 is an equidigital number, since it uses as much as digits as its factorization.

14224142014421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16384, while the sum is 32.

Adding to 14224142014421 its reverse (12441024142241), we get a palindrome (26665166156662).

The spelling of 14224142014421 in words is "fourteen trillion, two hundred twenty-four billion, one hundred forty-two million, fourteen thousand, four hundred twenty-one".