221434423302 has 8 divisors (see below), whose sum is σ = 442868846616. Its totient is φ = 73811474432.

The previous prime is 221434423277. The next prime is 221434423349. The reversal of 221434423302 is 203324434122.

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

221434423302 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 221434423302.

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, 18452868603 + ... + 18452868614.

It is an arithmetic number, because the mean of its divisors is an integer number (55358605827).

Almost surely, 2^221434423302 is an apocalyptic number.

221434423302 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221434423302 is a wasteful number, since it uses less digits than its factorization.

221434423302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36905737222.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 221434423302 its reverse (203324434122), we get a palindrome (424758857424).

The spelling of 221434423302 in words is "two hundred twenty-one billion, four hundred thirty-four million, four hundred twenty-three thousand, three hundred two".