221202212330044 has 48 divisors (see below), whose sum is σ = 427106444873472. Its totient is φ = 99407221200000.

The previous prime is 221202212330027. The next prime is 221202212330081. The reversal of 221202212330044 is 440033212202122.

It is a junction number, because it is equal to n+sod(n) for n = 221202212329994 and 221202212330021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77492737 + ... + 80296504.

It is an arithmetic number, because the mean of its divisors is an integer number (8898050934864).

Almost surely, 2^{221202212330044} is an apocalyptic number.

It is an amenable number.

221202212330044 is a deficient number, since it is larger than the sum of its proper divisors (205904232543428).

221202212330044 is a wasteful number, since it uses less digits than its factorization.

221202212330044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157789618 (or 157789616 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 221202212330044 its reverse (440033212202122), we get a palindrome (661235424532166).

The spelling of 221202212330044 in words is "two hundred twenty-one trillion, two hundred two billion, two hundred twelve million, three hundred thirty thousand, forty-four".