188438930222 has 8 divisors (see below), whose sum is σ = 284220044472. Its totient is φ = 93698915400.

The previous prime is 188438930213. The next prime is 188438930237. The reversal of 188438930222 is 222039834881.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260274404 + ... + 260275127.

It is an arithmetic number, because the mean of its divisors is an integer number (35527505559).

Almost surely, 2^188438930222 is an apocalyptic number.

188438930222 is a deficient number, since it is larger than the sum of its proper divisors (95781114250).

188438930222 is a wasteful number, since it uses less digits than its factorization.

188438930222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520549714.

The product of its (nonzero) digits is 1327104, while the sum is 50.

The spelling of 188438930222 in words is "one hundred eighty-eight billion, four hundred thirty-eight million, nine hundred thirty thousand, two hundred twenty-two".