221134195 has 4 divisors (see below), whose sum is σ = 265361040. Its totient is φ = 176907352.

The previous prime is 221134153. The next prime is 221134223. The reversal of 221134195 is 591431122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221134195 - 2⁹ = 221133683 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22113415 + ... + 22113424.

It is an arithmetic number, because the mean of its divisors is an integer number (66340260).

Almost surely, 2^221134195 is an apocalyptic number.

221134195 is a deficient number, since it is larger than the sum of its proper divisors (44226845).

221134195 is an equidigital number, since it uses as much as digits as its factorization.

221134195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44226844.

The product of its digits is 2160, while the sum is 28.

The square root of 221134195 is about 14870.5815286424. The cubic root of 221134195 is about 604.7167082042.

The spelling of 221134195 in words is "two hundred twenty-one million, one hundred thirty-four thousand, one hundred ninety-five".