22024021 has 8 divisors (see below), whose sum is σ = 23983200. Its totient is φ = 20144880.

The previous prime is 22024007. The next prime is 22024031. The reversal of 22024021 is 12042022.

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 22024021 - 2⁷ = 22023893 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 22023992 and 22024010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22024001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19435 + ... + 20536.

It is an arithmetic number, because the mean of its divisors is an integer number (2997900).

Almost surely, 2^22024021 is an apocalyptic number.

It is an amenable number.

22024021 is a deficient number, since it is larger than the sum of its proper divisors (1959179).

22024021 is a wasteful number, since it uses less digits than its factorization.

22024021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40019.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 22024021 is about 4692.9757084392. The cubic root of 22024021 is about 280.3058774665.

Adding to 22024021 its reverse (12042022), we get a palindrome (34066043).

The spelling of 22024021 in words is "twenty-two million, twenty-four thousand, twenty-one".