14121021 has 4 divisors (see below), whose sum is σ = 18828032. Its totient is φ = 9414012.

The previous prime is 14120983. The next prime is 14121031. The reversal of 14121021 is 12012141.

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.

It is not a de Polignac number, because 14121021 - 2⁶ = 14120957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14120988 and 14121006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14121031) 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, 2353501 + ... + 2353506.

It is an arithmetic number, because the mean of its divisors is an integer number (4707008).

Almost surely, 2^14121021 is an apocalyptic number.

It is an amenable number.

14121021 is a deficient number, since it is larger than the sum of its proper divisors (4707011).

14121021 is an equidigital number, since it uses as much as digits as its factorization.

14121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4707010.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 14121021 is about 3757.7946990223. The cubic root of 14121021 is about 241.7067059039.

Adding to 14121021 its reverse (12012141), we get a palindrome (26133162).

The spelling of 14121021 in words is "fourteen million, one hundred twenty-one thousand, twenty-one".