221434323422 has 8 divisors (see below), whose sum is σ = 357701599416. Its totient is φ = 102200456952.

The previous prime is 221434323389. The next prime is 221434323431. The reversal of 221434323422 is 224323434122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4258352348 + ... + 4258352399.

It is an arithmetic number, because the mean of its divisors is an integer number (44712699927).

Almost surely, 2^221434323422 is an apocalyptic number.

221434323422 is a deficient number, since it is larger than the sum of its proper divisors (136267275994).

221434323422 is a wasteful number, since it uses less digits than its factorization.

221434323422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8516704762.

The product of its digits is 55296, while the sum is 32.

Adding to 221434323422 its reverse (224323434122), we get a palindrome (445757757544).

The spelling of 221434323422 in words is "two hundred twenty-one billion, four hundred thirty-four million, three hundred twenty-three thousand, four hundred twenty-two".