188220349228 has 12 divisors (see below), whose sum is σ = 329435738632. Its totient is φ = 94095852480.

The previous prime is 188220349217. The next prime is 188220349237. The reversal of 188220349228 is 822943022881.

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, 3550938 + ... + 3603553.

Almost surely, 2^188220349228 is an apocalyptic number.

It is an amenable number.

188220349228 is a deficient number, since it is larger than the sum of its proper divisors (141215389404).

188220349228 is a wasteful number, since it uses less digits than its factorization.

188220349228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7161072 (or 7161070 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 49.

The spelling of 188220349228 in words is "one hundred eighty-eight billion, two hundred twenty million, three hundred forty-nine thousand, two hundred twenty-eight".