14142420333221 has 8 divisors (see below), whose sum is σ = 14193834787704. Its totient is φ = 14091008460480.

The previous prime is 14142420333199. The next prime is 14142420333241. The reversal of 14142420333221 is 12233302424141.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 731341384225 + 13411078948996 = 855185^2 + 3662114^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14142420333221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14142420333241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10691411 + ... + 11941151.

It is an arithmetic number, because the mean of its divisors is an integer number (1774229348463).

Almost surely, 2^{14142420333221} is an apocalyptic number.

It is an amenable number.

14142420333221 is a deficient number, since it is larger than the sum of its proper divisors (51414454483).

14142420333221 is a wasteful number, since it uses less digits than its factorization.

14142420333221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290871.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 14142420333221 its reverse (12233302424141), we get a palindrome (26375722757362).

The spelling of 14142420333221 in words is "fourteen trillion, one hundred forty-two billion, four hundred twenty million, three hundred thirty-three thousand, two hundred twenty-one".