14223211431421 has 2 divisors, whose sum is σ = 14223211431422. Its totient is φ = 14223211431420.

The previous prime is 14223211431383. The next prime is 14223211431427. The reversal of 14223211431421 is 12413411232241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9997674848100 + 4225536583321 = 3161910^2 + 2055611^2 .

It is an emirp because it is prime and its reverse (12413411232241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14223211431421 - 2¹¹ = 14223211429373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14223211431427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7111605715710 + 7111605715711.

It is an arithmetic number, because the mean of its divisors is an integer number (7111605715711).

Almost surely, 2^{14223211431421} is an apocalyptic number.

It is an amenable number.

14223211431421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14223211431421 is an equidigital number, since it uses as much as digits as its factorization.

14223211431421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 31.

Adding to 14223211431421 its reverse (12413411232241), we get a palindrome (26636622663662).

The spelling of 14223211431421 in words is "fourteen trillion, two hundred twenty-three billion, two hundred eleven million, four hundred thirty-one thousand, four hundred twenty-one".