22021424455 has 8 divisors (see below), whose sum is σ = 26603064000. Its totient is φ = 17498903136.

The previous prime is 22021424449. The next prime is 22021424527. The reversal of 22021424455 is 55442412022.

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 22021424455 - 2⁵ = 22021424423 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 14778735 + ... + 14780224.

It is an arithmetic number, because the mean of its divisors is an integer number (3325383000).

Almost surely, 2^22021424455 is an apocalyptic number.

22021424455 is a deficient number, since it is larger than the sum of its proper divisors (4581639545).

22021424455 is a wasteful number, since it uses less digits than its factorization.

22021424455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29559113.

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 22021424455 its reverse (55442412022), we get a palindrome (77463836477).

The spelling of 22021424455 in words is "twenty-two billion, twenty-one million, four hundred twenty-four thousand, four hundred fifty-five".