221324002401 has 8 divisors (see below), whose sum is σ = 295314548544. Its totient is φ = 147441395600.

The previous prime is 221324002397. The next prime is 221324002411. The reversal of 221324002401 is 104200423122.

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 221324002401 - 2² = 221324002397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221324002411) 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, 26980050 + ... + 26988251.

It is an arithmetic number, because the mean of its divisors is an integer number (36914318568).

Almost surely, 2^221324002401 is an apocalyptic number.

It is an amenable number.

221324002401 is a deficient number, since it is larger than the sum of its proper divisors (73990546143).

221324002401 is a wasteful number, since it uses less digits than its factorization.

221324002401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53969671.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 221324002401 its reverse (104200423122), we get a palindrome (325524425523).

The spelling of 221324002401 in words is "two hundred twenty-one billion, three hundred twenty-four million, two thousand, four hundred one".