22222422247 has 2 divisors, whose sum is σ = 22222422248. Its totient is φ = 22222422246.

The previous prime is 22222422169. The next prime is 22222422251. The reversal of 22222422247 is 74222422222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22222422247 - 2³¹ = 20074938599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22222432247) 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 as a sum of consecutive naturals, namely, 11111211123 + 11111211124.

It is an arithmetic number, because the mean of its divisors is an integer number (11111211124).

Almost surely, 2^22222422247 is an apocalyptic number.

22222422247 is a deficient number, since it is larger than the sum of its proper divisors (1).

22222422247 is an equidigital number, since it uses as much as digits as its factorization.

22222422247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28672, while the sum is 31.

Adding to 22222422247 its reverse (74222422222), we get a palindrome (96444844469).

The spelling of 22222422247 in words is "twenty-two billion, two hundred twenty-two million, four hundred twenty-two thousand, two hundred forty-seven".