1132213221 has 20 divisors (see below), whose sum is σ = 1727322432. Its totient is φ = 738746568.

The previous prime is 1132213207. The next prime is 1132213261. The reversal of 1132213221 is 1223122311.

It is not a de Polignac number, because 1132213221 - 2¹⁰ = 1132212197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1132213194 and 1132213203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132213261) 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 19 ways as a sum of consecutive naturals, for example, 144895 + ... + 152508.

Almost surely, 2^1132213221 is an apocalyptic number.

It is an amenable number.

1132213221 is a deficient number, since it is larger than the sum of its proper divisors (595109211).

1132213221 is an equidigital number, since it uses as much as digits as its factorization.

1132213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297462 (or 297453 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1132213221 is about 33648.3762015346. The cubic root of 1132213221 is about 1042.2600078998.

Adding to 1132213221 its reverse (1223122311), we get a palindrome (2355335532).

The spelling of 1132213221 in words is "one billion, one hundred thirty-two million, two hundred thirteen thousand, two hundred twenty-one".