221444010321413 has 8 divisors (see below), whose sum is σ = 241576271302176. Its totient is φ = 201311913893200.

The previous prime is 221444010321409. The next prime is 221444010321437. The reversal of 221444010321413 is 314123010444122.

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

It is not a de Polignac number, because 221444010321413 - 2² = 221444010321409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221444010321413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221444010321613) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 38315906 + ... + 43714947.

It is an arithmetic number, because the mean of its divisors is an integer number (30197033912772).

Almost surely, 2^{221444010321413} is an apocalyptic number.

It is an amenable number.

221444010321413 is a deficient number, since it is larger than the sum of its proper divisors (20132260980763).

221444010321413 is a wasteful number, since it uses less digits than its factorization.

221444010321413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82276275.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 221444010321413 its reverse (314123010444122), we get a palindrome (535567020765535).

The spelling of 221444010321413 in words is "two hundred twenty-one trillion, four hundred forty-four billion, ten million, three hundred twenty-one thousand, four hundred thirteen".