1325244221 has 8 divisors (see below), whose sum is σ = 1523027520. Its totient is φ = 1129576608.

The previous prime is 1325244187. The next prime is 1325244223. The reversal of 1325244221 is 1224425231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1325244221 - 2³⁰ = 251502397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325244223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527576 + ... + 530081.

It is an arithmetic number, because the mean of its divisors is an integer number (190378440).

Almost surely, 2^1325244221 is an apocalyptic number.

It is an amenable number.

1325244221 is a deficient number, since it is larger than the sum of its proper divisors (197783299).

1325244221 is a wasteful number, since it uses less digits than its factorization.

1325244221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057843.

The product of its digits is 3840, while the sum is 26.

The square root of 1325244221 is about 36403.9039252660. The cubic root of 1325244221 is about 1098.4120948326.

Adding to 1325244221 its reverse (1224425231), we get a palindrome (2549669452).

The spelling of 1325244221 in words is "one billion, three hundred twenty-five million, two hundred forty-four thousand, two hundred twenty-one".