22004414021 has 4 divisors (see below), whose sum is σ = 22007204832. Its totient is φ = 22001623212.

The previous prime is 22004414011. The next prime is 22004414027. The reversal of 22004414021 is 12041440022.

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 a de Polignac number, because none of the positive numbers 2^k-22004414021 is a prime.

It is a super-3 number, since 3×22004414021³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22004413984 and 22004414002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22004414027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1383545 + ... + 1399358.

It is an arithmetic number, because the mean of its divisors is an integer number (5501801208).

Almost surely, 2^22004414021 is an apocalyptic number.

It is an amenable number.

22004414021 is a deficient number, since it is larger than the sum of its proper divisors (2790811).

22004414021 is an equidigital number, since it uses as much as digits as its factorization.

22004414021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790810.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22004414021 its reverse (12041440022), we get a palindrome (34045854043).

The spelling of 22004414021 in words is "twenty-two billion, four million, four hundred fourteen thousand, twenty-one".