221241440001 has 8 divisors (see below), whose sum is σ = 312340856544. Its totient is φ = 138818158400.

The previous prime is 221241439999. The next prime is 221241440047. The reversal of 221241440001 is 100044142122.

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 221241440001 - 2¹ = 221241439999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221241440001.

It is not an unprimeable number, because it can be changed into a prime (221241440201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2169033675 + ... + 2169033776.

It is an arithmetic number, because the mean of its divisors is an integer number (39042607068).

Almost surely, 2^221241440001 is an apocalyptic number.

It is an amenable number.

221241440001 is a deficient number, since it is larger than the sum of its proper divisors (91099416543).

221241440001 is a wasteful number, since it uses less digits than its factorization.

221241440001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4338067471.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 221241440001 its reverse (100044142122), we get a palindrome (321285582123).

The spelling of 221241440001 in words is "two hundred twenty-one billion, two hundred forty-one million, four hundred forty thousand, one".