22214021 has 8 divisors (see below), whose sum is σ = 24400320. Its totient is φ = 20129472.

The previous prime is 22214009. The next prime is 22214057. The reversal of 22214021 is 12041222.

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

It is a cyclic number.

It is not a de Polignac number, because 22214021 - 2¹⁰ = 22212997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22213987 and 22214005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22214921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24980 + ... + 25853.

It is an arithmetic number, because the mean of its divisors is an integer number (3050040).

Almost surely, 2^22214021 is an apocalyptic number.

It is an amenable number.

22214021 is a deficient number, since it is larger than the sum of its proper divisors (2186299).

22214021 is a wasteful number, since it uses less digits than its factorization.

22214021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50875.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 22214021 is about 4713.1752566608. The cubic root of 22214021 is about 281.1096316181.

Adding to 22214021 its reverse (12041222), we get a palindrome (34255243).

The spelling of 22214021 in words is "twenty-two million, two hundred fourteen thousand, twenty-one".