221344041441401 has 8 divisors (see below), whose sum is σ = 221391382804200. Its totient is φ = 221296701104128.

The previous prime is 221344041441377. The next prime is 221344041441403. The reversal of 221344041441401 is 104144140443122.

It can be written as a sum of positive squares in 4 ways, for example, as 2799531312400 + 218544510129001 = 1673180^2 + 14783251^2 .

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 221344041441401 - 2⁴⁶ = 150975297263737 is a prime.

It is a super-2 number, since 2×221344041441401² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221344041441403) 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, 561520025 + ... + 561914073.

It is an arithmetic number, because the mean of its divisors is an integer number (27673922850525).

Almost surely, 2^{221344041441401} is an apocalyptic number.

It is an amenable number.

221344041441401 is a deficient number, since it is larger than the sum of its proper divisors (47341362799).

221344041441401 is a wasteful number, since it uses less digits than its factorization.

221344041441401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512763.

The product of its (nonzero) digits is 49152, while the sum is 35.

Adding to 221344041441401 its reverse (104144140443122), we get a palindrome (325488181884523).

The spelling of 221344041441401 in words is "two hundred twenty-one trillion, three hundred forty-four billion, forty-one million, four hundred forty-one thousand, four hundred one".