14221223021 has 4 divisors (see below), whose sum is σ = 14308469952. Its totient is φ = 14133976092.

The previous prime is 14221222969. The next prime is 14221223041. The reversal of 14221223021 is 12032212241.

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 a cyclic number.

It is not a de Polignac number, because 14221223021 - 2¹⁰ = 14221221997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14221222984 and 14221223002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14221223041) 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, 43623221 + ... + 43623546.

It is an arithmetic number, because the mean of its divisors is an integer number (3577117488).

Almost surely, 2^14221223021 is an apocalyptic number.

It is an amenable number.

14221223021 is a deficient number, since it is larger than the sum of its proper divisors (87246931).

14221223021 is an equidigital number, since it uses as much as digits as its factorization.

14221223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87246930.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 14221223021 its reverse (12032212241), we get a palindrome (26253435262).

The spelling of 14221223021 in words is "fourteen billion, two hundred twenty-one million, two hundred twenty-three thousand, twenty-one".