221313112401 has 8 divisors (see below), whose sum is σ = 297038350144. Its totient is φ = 146564974800.

The previous prime is 221313112369. The next prime is 221313112417. The reversal of 221313112401 is 104211313122.

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

It is not a de Polignac number, because 221313112401 - 2⁵ = 221313112369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221313111401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244274506 + ... + 244275411.

It is an arithmetic number, because the mean of its divisors is an integer number (37129793768).

Almost surely, 2^221313112401 is an apocalyptic number.

It is an amenable number.

221313112401 is a deficient number, since it is larger than the sum of its proper divisors (75725237743).

221313112401 is a wasteful number, since it uses less digits than its factorization.

221313112401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488550071.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 221313112401 its reverse (104211313122), we get a palindrome (325524425523).

The spelling of 221313112401 in words is "two hundred twenty-one billion, three hundred thirteen million, one hundred twelve thousand, four hundred one".