22442203237 has 2 divisors, whose sum is σ = 22442203238. Its totient is φ = 22442203236.

The previous prime is 22442203181. The next prime is 22442203247. The reversal of 22442203237 is 73230224422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22308708321 + 133494916 = 149361^2 + 11554^2 .

It is a cyclic number.

It is not a de Polignac number, because 22442203237 - 2¹⁹ = 22441678949 is a prime.

It is a super-2 number, since 2×22442203237² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22442203199 and 22442203208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22442203247) 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, 11221101618 + 11221101619.

It is an arithmetic number, because the mean of its divisors is an integer number (11221101619).

Almost surely, 2^22442203237 is an apocalyptic number.

It is an amenable number.

22442203237 is a deficient number, since it is larger than the sum of its proper divisors (1).

22442203237 is an equidigital number, since it uses as much as digits as its factorization.

22442203237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 31.

Adding to 22442203237 its reverse (73230224422), we get a palindrome (95672427659).

The spelling of 22442203237 in words is "twenty-two billion, four hundred forty-two million, two hundred three thousand, two hundred thirty-seven".