1241433221 has 4 divisors (see below), whose sum is σ = 1418780832. Its totient is φ = 1064085612.

The previous prime is 1241433209. The next prime is 1241433227. The reversal of 1241433221 is 1223341421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1241433221 - 2¹⁸ = 1241171077 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241433227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88673795 + ... + 88673808.

It is an arithmetic number, because the mean of its divisors is an integer number (354695208).

Almost surely, 2^1241433221 is an apocalyptic number.

It is an amenable number.

1241433221 is a deficient number, since it is larger than the sum of its proper divisors (177347611).

1241433221 is an equidigital number, since it uses as much as digits as its factorization.

1241433221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177347610.

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

The square root of 1241433221 is about 35233.9782170563. The cubic root of 1241433221 is about 1074.7508262580.

Adding to 1241433221 its reverse (1223341421), we get a palindrome (2464774642).

The spelling of 1241433221 in words is "one billion, two hundred forty-one million, four hundred thirty-three thousand, two hundred twenty-one".