221434343333 has 16 divisors (see below), whose sum is σ = 259201388160. Its totient is φ = 185252671296.

The previous prime is 221434343303. The next prime is 221434343401. The reversal of 221434343333 is 333343434122.

It is not a de Polignac number, because 221434343333 - 2⁸ = 221434343077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221434343293 and 221434343302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221434343303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2114666 + ... + 2216907.

It is an arithmetic number, because the mean of its divisors is an integer number (16200086760).

Almost surely, 2^221434343333 is an apocalyptic number.

It is an amenable number.

221434343333 is a deficient number, since it is larger than the sum of its proper divisors (37767044827).

221434343333 is a wasteful number, since it uses less digits than its factorization.

221434343333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4331756.

The product of its digits is 186624, while the sum is 35.

Adding to 221434343333 its reverse (333343434122), we get a palindrome (554777777455).

The spelling of 221434343333 in words is "two hundred twenty-one billion, four hundred thirty-four million, three hundred forty-three thousand, three hundred thirty-three".