221141343 has 16 divisors (see below), whose sum is σ = 308353536. Its totient is φ = 140706720.

The previous prime is 221141257. The next prime is 221141351. The reversal of 221141343 is 343141122.

It is not a de Polignac number, because 221141343 - 2⁸ = 221141087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221141363) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 30313 + ... + 36893.

It is an arithmetic number, because the mean of its divisors is an integer number (19272096).

Almost surely, 2^221141343 is an apocalyptic number.

221141343 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

221141343 is a deficient number, since it is larger than the sum of its proper divisors (87212193).

221141343 is a wasteful number, since it uses less digits than its factorization.

221141343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7094.

The product of its digits is 576, while the sum is 21.

The square root of 221141343 is about 14870.8218669985. The cubic root of 221141343 is about 604.7232238080.

Adding to 221141343 its reverse (343141122), we get a palindrome (564282465).

The spelling of 221141343 in words is "two hundred twenty-one million, one hundred forty-one thousand, three hundred forty-three".