221117341 has 4 divisors (see below), whose sum is σ = 222601500. Its totient is φ = 219633184.

The previous prime is 221117339. The next prime is 221117399. The reversal of 221117341 is 143711122.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25704900 + 195412441 = 5070^2 + 13979^2 .

It is a cyclic number.

It is not a de Polignac number, because 221117341 - 2¹ = 221117339 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 (221117641) by changing a digit.

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, 741856 + ... + 742153.

It is an arithmetic number, because the mean of its divisors is an integer number (55650375).

Almost surely, 2^221117341 is an apocalyptic number.

It is an amenable number.

221117341 is a deficient number, since it is larger than the sum of its proper divisors (1484159).

221117341 is a wasteful number, since it uses less digits than its factorization.

221117341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484158.

The product of its digits is 336, while the sum is 22.

The square root of 221117341 is about 14870.0148285064. The cubic root of 221117341 is about 604.7013447513.

Adding to 221117341 its reverse (143711122), we get a palindrome (364828463).

The spelling of 221117341 in words is "two hundred twenty-one million, one hundred seventeen thousand, three hundred forty-one".