221344140013241 has 6 divisors (see below), whose sum is σ = 257481958790970. Its totient is φ = 189723548582736.

The previous prime is 221344140013223. The next prime is 221344140013277. The reversal of 221344140013241 is 142310041443122.

It can be written as a sum of positive squares in only one way, i.e., 177972168665641 + 43371971347600 = 13340621^2 + 6585740^2 .

It is not a de Polignac number, because 221344140013241 - 2¹⁴ = 221344139996857 is a prime.

It is a super-5 number, since 5×221344140013241⁵ (a number of 73 digits) contains 55555 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221344140013198 and 221344140013207.

It is not an unprimeable number, because it can be changed into a prime (221344140013291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2258613673556 + ... + 2258613673653.

It is an arithmetic number, because the mean of its divisors is an integer number (42913659798495).

Almost surely, 2^{221344140013241} is an apocalyptic number.

It is an amenable number.

221344140013241 is a deficient number, since it is larger than the sum of its proper divisors (36137818777729).

221344140013241 is an equidigital number, since it uses as much as digits as its factorization.

221344140013241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4517227347223 (or 4517227347216 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 221344140013241 its reverse (142310041443122), we get a palindrome (363654181456363).

The spelling of 221344140013241 in words is "two hundred twenty-one trillion, three hundred forty-four billion, one hundred forty million, thirteen thousand, two hundred forty-one".