14210120021 has 4 divisors (see below), whose sum is σ = 15046009452. Its totient is φ = 13374230592.

The previous prime is 14210119999. The next prime is 14210120053. The reversal of 14210120021 is 12002101241.

It is a happy number.

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 5605516900 + 8604603121 = 74870^2 + 92761^2 .

It is a cyclic number.

It is not a de Polignac number, because 14210120021 - 2¹⁰ = 14210118997 is a prime.

It is a super-2 number, since 2×14210120021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14210119978 and 14210120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14210120621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417944690 + ... + 417944723.

It is an arithmetic number, because the mean of its divisors is an integer number (3761502363).

Almost surely, 2^14210120021 is an apocalyptic number.

It is an amenable number.

14210120021 is a deficient number, since it is larger than the sum of its proper divisors (835889431).

14210120021 is an equidigital number, since it uses as much as digits as its factorization.

14210120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835889430.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 14210120021 its reverse (12002101241), we get a palindrome (26212221262).

The spelling of 14210120021 in words is "fourteen billion, two hundred ten million, one hundred twenty thousand, twenty-one".