14212021 has 4 divisors (see below), whose sum is σ = 14392000. Its totient is φ = 14032044.

The previous prime is 14211997. The next prime is 14212031. The reversal of 14212021 is 12021241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12021241 = 41 ⋅293201.

It is a cyclic number.

It is not a de Polignac number, because 14212021 - 2¹⁷ = 14080949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14211992 and 14212010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14212031) 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, 89871 + ... + 90028.

It is an arithmetic number, because the mean of its divisors is an integer number (3598000).

Almost surely, 2^14212021 is an apocalyptic number.

It is an amenable number.

14212021 is a deficient number, since it is larger than the sum of its proper divisors (179979).

14212021 is an equidigital number, since it uses as much as digits as its factorization.

14212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179978.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 14212021 is about 3769.8834199482. The cubic root of 14212021 is about 242.2248041962.

Adding to 14212021 its reverse (12021241), we get a palindrome (26233262).

The spelling of 14212021 in words is "fourteen million, two hundred twelve thousand, twenty-one".