221440444301 has 12 divisors (see below), whose sum is σ = 229324566240. Its totient is φ = 213810695280.

The previous prime is 221440444261. The next prime is 221440444307. The reversal of 221440444301 is 103444044122.

221440444301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-221440444301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221440444307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 438041 + ... + 796718.

It is an arithmetic number, because the mean of its divisors is an integer number (19110380520).

Almost surely, 2^221440444301 is an apocalyptic number.

It is an amenable number.

221440444301 is a deficient number, since it is larger than the sum of its proper divisors (7884121939).

221440444301 is a wasteful number, since it uses less digits than its factorization.

221440444301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234964 (or 1234927 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 221440444301 its reverse (103444044122), we get a palindrome (324884488423).

The spelling of 221440444301 in words is "two hundred twenty-one billion, four hundred forty million, four hundred forty-four thousand, three hundred one".