221434044403 has 8 divisors (see below), whose sum is σ = 260146290096. Its totient is φ = 185818778400.

The previous prime is 221434044401. The next prime is 221434044439. The reversal of 221434044403 is 304440434122.

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

It is a cyclic number.

It is not a de Polignac number, because 221434044403 - 2¹ = 221434044401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221434044401) 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, 774244768 + ... + 774245053.

It is an arithmetic number, because the mean of its divisors is an integer number (32518286262).

Almost surely, 2^221434044403 is an apocalyptic number.

221434044403 is a deficient number, since it is larger than the sum of its proper divisors (38712245693).

221434044403 is a wasteful number, since it uses less digits than its factorization.

221434044403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548489845.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 221434044403 its reverse (304440434122), we get a palindrome (525874478525).

The spelling of 221434044403 in words is "two hundred twenty-one billion, four hundred thirty-four million, forty-four thousand, four hundred three".