221888550189 has 8 divisors (see below), whose sum is σ = 295989851200. Its totient is φ = 147856474656.

The previous prime is 221888550179. The next prime is 221888550209. The reversal of 221888550189 is 981055888122.

It is a happy number.

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

It is not a de Polignac number, because 221888550189 - 2¹³ = 221888541997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221888550109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17298889 + ... + 17311710.

It is an arithmetic number, because the mean of its divisors is an integer number (36998731400).

Almost surely, 2^221888550189 is an apocalyptic number.

It is an amenable number.

221888550189 is a deficient number, since it is larger than the sum of its proper divisors (74101301011).

221888550189 is a wasteful number, since it uses less digits than its factorization.

221888550189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34612739.

The product of its (nonzero) digits is 3686400, while the sum is 57.

The spelling of 221888550189 in words is "two hundred twenty-one billion, eight hundred eighty-eight million, five hundred fifty thousand, one hundred eighty-nine".