1132331221 has 8 divisors (see below), whose sum is σ = 1306657664. Its totient is φ = 961146000.

The previous prime is 1132331219. The next prime is 1132331231. The reversal of 1132331221 is 1221332311.

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 1132331221 - 2¹ = 1132331219 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 (1132331231) 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, 784530 + ... + 785971.

It is an arithmetic number, because the mean of its divisors is an integer number (163332208).

Almost surely, 2^1132331221 is an apocalyptic number.

It is an amenable number.

1132331221 is a deficient number, since it is larger than the sum of its proper divisors (174326443).

1132331221 is a wasteful number, since it uses less digits than its factorization.

1132331221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570611.

The product of its digits is 216, while the sum is 19.

The square root of 1132331221 is about 33650.1295837029. The cubic root of 1132331221 is about 1042.2962149812.

Adding to 1132331221 its reverse (1221332311), we get a palindrome (2353663532).

The spelling of 1132331221 in words is "one billion, one hundred thirty-two million, three hundred thirty-one thousand, two hundred twenty-one".