1241334221 has 4 divisors (see below), whose sum is σ = 1242790332. Its totient is φ = 1239878112.

The previous prime is 1241334197. The next prime is 1241334257. The reversal of 1241334221 is 1224331421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93818596 + 1147515625 = 9686^2 + 33875^2 .

It is a cyclic number.

It is not a de Polignac number, because 1241334221 - 2¹⁴ = 1241317837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241334421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726776 + ... + 728481.

It is an arithmetic number, because the mean of its divisors is an integer number (310697583).

Almost surely, 2^1241334221 is an apocalyptic number.

It is an amenable number.

1241334221 is a deficient number, since it is larger than the sum of its proper divisors (1456111).

1241334221 is an equidigital number, since it uses as much as digits as its factorization.

1241334221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456110.

The product of its digits is 1152, while the sum is 23.

The square root of 1241334221 is about 35232.5732951767. The cubic root of 1241334221 is about 1074.7222562797.

Adding to 1241334221 its reverse (1224331421), we get a palindrome (2465665642).

The spelling of 1241334221 in words is "one billion, two hundred forty-one million, three hundred thirty-four thousand, two hundred twenty-one".