221343334 has 16 divisors (see below), whose sum is σ = 334348560. Its totient is φ = 109897120.

The previous prime is 221343313. The next prime is 221343337. The reversal of 221343334 is 433343122.

It is a junction number, because it is equal to n+sod(n) for n = 221343299 and 221343308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221343337) 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, 227469 + ... + 228439.

It is an arithmetic number, because the mean of its divisors is an integer number (20896785).

Almost surely, 2^221343334 is an apocalyptic number.

221343334 is a deficient number, since it is larger than the sum of its proper divisors (113005226).

221343334 is a wasteful number, since it uses less digits than its factorization.

221343334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655.

The product of its digits is 5184, while the sum is 25.

The square root of 221343334 is about 14877.6118379261. The cubic root of 221343334 is about 604.9072862959.

Adding to 221343334 its reverse (433343122), we get a palindrome (654686456).

The spelling of 221343334 in words is "two hundred twenty-one million, three hundred forty-three thousand, three hundred thirty-four".