1132443231221 has 4 divisors (see below), whose sum is σ = 1181679893472. Its totient is φ = 1083206568972.

The previous prime is 1132443231217. The next prime is 1132443231247. The reversal of 1132443231221 is 1221323442311.

It is a happy number.

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 1132443231221 - 2² = 1132443231217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132443231211) 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, 24618331091 + ... + 24618331136.

It is an arithmetic number, because the mean of its divisors is an integer number (295419973368).

Almost surely, 2^{1132443231221} is an apocalyptic number.

It is an amenable number.

1132443231221 is a deficient number, since it is larger than the sum of its proper divisors (49236662251).

1132443231221 is an equidigital number, since it uses as much as digits as its factorization.

1132443231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49236662250.

The product of its digits is 6912, while the sum is 29.

Adding to 1132443231221 its reverse (1221323442311), we get a palindrome (2353766673532).

The spelling of 1132443231221 in words is "one trillion, one hundred thirty-two billion, four hundred forty-three million, two hundred thirty-one thousand, two hundred twenty-one".