221434322 has 16 divisors (see below), whose sum is σ = 351475200. Its totient is φ = 104337360.

The previous prime is 221434321. The next prime is 221434349. The reversal of 221434322 is 223434122.

221434322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (221434321) 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, 7997 + ... + 22512.

It is an arithmetic number, because the mean of its divisors is an integer number (21967200).

Almost surely, 2^221434322 is an apocalyptic number.

221434322 is a deficient number, since it is larger than the sum of its proper divisors (130040878).

221434322 is a wasteful number, since it uses less digits than its factorization.

221434322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30721.

The product of its digits is 2304, while the sum is 23.

The square root of 221434322 is about 14880.6694069857. The cubic root of 221434322 is about 604.9901617142.

Adding to 221434322 its reverse (223434122), we get a palindrome (444868444).

The spelling of 221434322 in words is "two hundred twenty-one million, four hundred thirty-four thousand, three hundred twenty-two".