221115341 has 2 divisors, whose sum is σ = 221115342. Its totient is φ = 221115340.

The previous prime is 221115319. The next prime is 221115437. The reversal of 221115341 is 143511122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214739716 + 6375625 = 14654^2 + 2525^2 .

It is a cyclic number.

It is not a de Polignac number, because 221115341 - 2¹⁰ = 221114317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221115241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110557670 + 110557671.

It is an arithmetic number, because the mean of its divisors is an integer number (110557671).

Almost surely, 2^221115341 is an apocalyptic number.

It is an amenable number.

221115341 is a deficient number, since it is larger than the sum of its proper divisors (1).

221115341 is an equidigital number, since it uses as much as digits as its factorization.

221115341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 240, while the sum is 20.

The square root of 221115341 is about 14869.9475789258. The cubic root of 221115341 is about 604.6995215770.

Adding to 221115341 its reverse (143511122), we get a palindrome (364626463).

The spelling of 221115341 in words is "two hundred twenty-one million, one hundred fifteen thousand, three hundred forty-one".