22424242397 has 2 divisors, whose sum is σ = 22424242398. Its totient is φ = 22424242396.

The previous prime is 22424242349. The next prime is 22424242433. The reversal of 22424242397 is 79324242422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19652114596 + 2772127801 = 140186^2 + 52651^2 .

It is a cyclic number.

It is not a de Polignac number, because 22424242397 - 2¹⁰ = 22424241373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22424242307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11212121198 + 11212121199.

It is an arithmetic number, because the mean of its divisors is an integer number (11212121199).

Almost surely, 2^22424242397 is an apocalyptic number.

It is an amenable number.

22424242397 is a deficient number, since it is larger than the sum of its proper divisors (1).

22424242397 is an equidigital number, since it uses as much as digits as its factorization.

22424242397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 41.

The spelling of 22424242397 in words is "twenty-two billion, four hundred twenty-four million, two hundred forty-two thousand, three hundred ninety-seven".