341321221 has 2 divisors, whose sum is σ = 341321222. Its totient is φ = 341321220.

The previous prime is 341321207. The next prime is 341321243. The reversal of 341321221 is 122123143.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 263705121 + 77616100 = 16239^2 + 8810^2 .

It is a cyclic number.

It is not a de Polignac number, because 341321221 - 2⁷ = 341321093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (341321021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170660610 + 170660611.

It is an arithmetic number, because the mean of its divisors is an integer number (170660611).

Almost surely, 2^341321221 is an apocalyptic number.

It is an amenable number.

341321221 is a deficient number, since it is larger than the sum of its proper divisors (1).

341321221 is an equidigital number, since it uses as much as digits as its factorization.

341321221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 19.

The square root of 341321221 is about 18474.8808115235. The cubic root of 341321221 is about 698.8561052086.

Adding to 341321221 its reverse (122123143), we get a palindrome (463444364).

It can be divided in two parts, 34132 and 1221, that added together give a palindrome (35353).

The spelling of 341321221 in words is "three hundred forty-one million, three hundred twenty-one thousand, two hundred twenty-one".