221441024001 has 4 divisors (see below), whose sum is σ = 295254698672. Its totient is φ = 147627349332.

The previous prime is 221441023967. The next prime is 221441024011. The reversal of 221441024001 is 100420144122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 221441024001 - 2⁷ = 221441023873 is a prime.

It is a super-2 number, since 2×221441024001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221441024011) 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 3 ways as a sum of consecutive naturals, for example, 36906837331 + ... + 36906837336.

It is an arithmetic number, because the mean of its divisors is an integer number (73813674668).

Almost surely, 2^221441024001 is an apocalyptic number.

It is an amenable number.

221441024001 is a deficient number, since it is larger than the sum of its proper divisors (73813674671).

221441024001 is an equidigital number, since it uses as much as digits as its factorization.

221441024001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73813674670.

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

Adding to 221441024001 its reverse (100420144122), we get a palindrome (321861168123).

The spelling of 221441024001 in words is "two hundred twenty-one billion, four hundred forty-one million, twenty-four thousand, one".