221024320244001 has 48 divisors (see below), whose sum is σ = 346855931049600. Its totient is φ = 138839415507936.

The previous prime is 221024320243981. The next prime is 221024320244027. The reversal of 221024320244001 is 100442023420122.

It is a happy number.

221024320244001 is a `hidden beast` number, since 2 + 2 + 10 + 2 + 4 + 3 + 202 + 440 + 0 + 1 = 666.

It is not a de Polignac number, because 221024320244001 - 2¹¹ = 221024320241953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (221024320234001) 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 47 ways as a sum of consecutive naturals, for example, 36855546 + ... + 42430883.

It is an arithmetic number, because the mean of its divisors is an integer number (7226165230200).

Almost surely, 2^{221024320244001} is an apocalyptic number.

It is an amenable number.

221024320244001 is a deficient number, since it is larger than the sum of its proper divisors (125831610805599).

221024320244001 is an equidigital number, since it uses as much as digits as its factorization.

221024320244001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79286595 (or 79286522 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 221024320244001 its reverse (100442023420122), we get a palindrome (321466343664123).

The spelling of 221024320244001 in words is "two hundred twenty-one trillion, twenty-four billion, three hundred twenty million, two hundred forty-four thousand, one".