388888189222 has 8 divisors (see below), whose sum is σ = 628203998016. Its totient is φ = 179486856552.

The previous prime is 388888189049. The next prime is 388888189241. The reversal of 388888189222 is 222981888883.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7478618998 + ... + 7478619049.

It is an arithmetic number, because the mean of its divisors is an integer number (78525499752).

Almost surely, 2^388888189222 is an apocalyptic number.

388888189222 is a deficient number, since it is larger than the sum of its proper divisors (239315808794).

388888189222 is a wasteful number, since it uses less digits than its factorization.

388888189222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14957238062.

The product of its digits is 56623104, while the sum is 67.

The spelling of 388888189222 in words is "three hundred eighty-eight billion, eight hundred eighty-eight million, one hundred eighty-nine thousand, two hundred twenty-two".