22424421997 has 8 divisors (see below), whose sum is σ = 22981875840. Its totient is φ = 21873808320.

The previous prime is 22424421947. The next prime is 22424422021. The reversal of 22424421997 is 79912442422.

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 22424421997 - 2¹¹ = 22424419949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22424421947) 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 7 ways as a sum of consecutive naturals, for example, 1703404 + ... + 1716517.

It is an arithmetic number, because the mean of its divisors is an integer number (2872734480).

Almost surely, 2^22424421997 is an apocalyptic number.

It is an amenable number.

22424421997 is a deficient number, since it is larger than the sum of its proper divisors (557453843).

22424421997 is an equidigital number, since it uses as much as digits as its factorization.

22424421997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3420083.

The product of its digits is 580608, while the sum is 46.

The spelling of 22424421997 in words is "twenty-two billion, four hundred twenty-four million, four hundred twenty-one thousand, nine hundred ninety-seven".