22442320073 has 2 divisors, whose sum is σ = 22442320074. Its totient is φ = 22442320072.

The previous prime is 22442320051. The next prime is 22442320091. The reversal of 22442320073 is 37002324422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20156332729 + 2285987344 = 141973^2 + 47812^2 .

It is a cyclic number.

It is not a de Polignac number, because 22442320073 - 2¹² = 22442315977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22442320673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11221160036 + 11221160037.

It is an arithmetic number, because the mean of its divisors is an integer number (11221160037).

Almost surely, 2^22442320073 is an apocalyptic number.

It is an amenable number.

22442320073 is a deficient number, since it is larger than the sum of its proper divisors (1).

22442320073 is an equidigital number, since it uses as much as digits as its factorization.

22442320073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 29.

Adding to 22442320073 its reverse (37002324422), we get a palindrome (59444644495).

The spelling of 22442320073 in words is "twenty-two billion, four hundred forty-two million, three hundred twenty thousand, seventy-three".