22238050909 has 2 divisors, whose sum is σ = 22238050910. Its totient is φ = 22238050908.

The previous prime is 22238050907. The next prime is 22238050969. The reversal of 22238050909 is 90905083222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18481586809 + 3756464100 = 135947^2 + 61290^2 .

It is a cyclic number.

It is not a de Polignac number, because 22238050909 - 2¹ = 22238050907 is a prime.

Together with 22238050907, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22238050907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11119025454 + 11119025455.

It is an arithmetic number, because the mean of its divisors is an integer number (11119025455).

Almost surely, 2^22238050909 is an apocalyptic number.

It is an amenable number.

22238050909 is a deficient number, since it is larger than the sum of its proper divisors (1).

22238050909 is an equidigital number, since it uses as much as digits as its factorization.

22238050909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 22238050909 in words is "twenty-two billion, two hundred thirty-eight million, fifty thousand, nine hundred nine".