221013341 has 2 divisors, whose sum is σ = 221013342. Its totient is φ = 221013340.

The previous prime is 221013319. The next prime is 221013343. The reversal of 221013341 is 143310122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133310116 + 87703225 = 11546^2 + 9365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221013341 is a prime.

Together with 221013343, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221013343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110506670 + 110506671.

It is an arithmetic number, because the mean of its divisors is an integer number (110506671).

Almost surely, 2^221013341 is an apocalyptic number.

It is an amenable number.

221013341 is a deficient number, since it is larger than the sum of its proper divisors (1).

221013341 is an equidigital number, since it uses as much as digits as its factorization.

221013341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 221013341 is about 14866.5174469342. The cubic root of 221013341 is about 604.6065251081.

Adding to 221013341 its reverse (143310122), we get a palindrome (364323463).

It can be divided in two parts, 2210 and 13341, that added together give a palindrome (15551).

The spelling of 221013341 in words is "two hundred twenty-one million, thirteen thousand, three hundred forty-one".