22220000237 has 2 divisors, whose sum is σ = 22220000238. Its totient is φ = 22220000236.

The previous prime is 22220000203. The next prime is 22220000273. The reversal of 22220000237 is 73200002222.

Together with next prime (22220000273) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21914065156 + 305935081 = 148034^2 + 17491^2 .

It is a cyclic number.

It is not a de Polignac number, because 22220000237 - 2⁸ = 22219999981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22220003237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110000118 + 11110000119.

It is an arithmetic number, because the mean of its divisors is an integer number (11110000119).

Almost surely, 2^22220000237 is an apocalyptic number.

It is an amenable number.

22220000237 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220000237 is an equidigital number, since it uses as much as digits as its factorization.

22220000237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 20.

Adding to 22220000237 its reverse (73200002222), we get a palindrome (95420002459).

The spelling of 22220000237 in words is "twenty-two billion, two hundred twenty million, two hundred thirty-seven", and thus it is an aban number.