220032191 has 8 divisors (see below), whose sum is σ = 230805504. Its totient is φ = 209359480.

The previous prime is 220032167. The next prime is 220032209. The reversal of 220032191 is 191230022.

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

It is a cyclic number.

It is not a de Polignac number, because 220032191 - 2¹⁰ = 220031167 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 (220032151) 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, 20651 + ... + 29436.

It is an arithmetic number, because the mean of its divisors is an integer number (28850688).

Almost surely, 2^220032191 is an apocalyptic number.

220032191 is a deficient number, since it is larger than the sum of its proper divisors (10773313).

220032191 is a wasteful number, since it uses less digits than its factorization.

220032191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50301.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 220032191 is about 14833.4820928870. The cubic root of 220032191 is about 603.7105163308.

The spelling of 220032191 in words is "two hundred twenty million, thirty-two thousand, one hundred ninety-one".