14242213421 has 4 divisors (see below), whose sum is σ = 14278088412. Its totient is φ = 14206338432.

The previous prime is 14242213417. The next prime is 14242213463. The reversal of 14242213421 is 12431224241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8311057225 + 5931156196 = 91165^2 + 77014^2 .

It is a cyclic number.

It is not a de Polignac number, because 14242213421 - 2² = 14242213417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14242213411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17936900 + ... + 17937693.

It is an arithmetic number, because the mean of its divisors is an integer number (3569522103).

Almost surely, 2^14242213421 is an apocalyptic number.

It is an amenable number.

14242213421 is a deficient number, since it is larger than the sum of its proper divisors (35874991).

14242213421 is an equidigital number, since it uses as much as digits as its factorization.

14242213421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35874990.

The product of its digits is 3072, while the sum is 26.

Adding to 14242213421 its reverse (12431224241), we get a palindrome (26673437662).

The spelling of 14242213421 in words is "fourteen billion, two hundred forty-two million, two hundred thirteen thousand, four hundred twenty-one".