22220221073 has 2 divisors, whose sum is σ = 22220221074. Its totient is φ = 22220221072.

The previous prime is 22220221063. The next prime is 22220221139. The reversal of 22220221073 is 37012202222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22114069264 + 106151809 = 148708^2 + 10303^2 .

It is a cyclic number.

It is not a de Polignac number, because 22220221073 - 2⁸ = 22220220817 is a prime.

It is not a weakly prime, because it can be changed into another prime (22220221043) 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, 11110110536 + 11110110537.

It is an arithmetic number, because the mean of its divisors is an integer number (11110110537).

Almost surely, 2^22220221073 is an apocalyptic number.

It is an amenable number.

22220221073 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220221073 is an equidigital number, since it uses as much as digits as its factorization.

22220221073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

Adding to 22220221073 its reverse (37012202222), we get a palindrome (59232423295).

The spelling of 22220221073 in words is "twenty-two billion, two hundred twenty million, two hundred twenty-one thousand, seventy-three".