208109222338 has 16 divisors (see below), whose sum is σ = 315045550080. Its totient is φ = 103096246176.

The previous prime is 208109222231. The next prime is 208109222393. The reversal of 208109222338 is 833222901802.

It is a self number, because there is not a number n which added to its sum of digits gives 208109222338.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 362643 + ... + 740086.

It is an arithmetic number, because the mean of its divisors is an integer number (19690346880).

Almost surely, 2^208109222338 is an apocalyptic number.

208109222338 is a deficient number, since it is larger than the sum of its proper divisors (106936327742).

208109222338 is a wasteful number, since it uses less digits than its factorization.

208109222338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103601.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 208109222338 in words is "two hundred eight billion, one hundred nine million, two hundred twenty-two thousand, three hundred thirty-eight".