1132013221 has 8 divisors (see below), whose sum is σ = 1201233240. Its totient is φ = 1063085568.

The previous prime is 1132013219. The next prime is 1132013237. The reversal of 1132013221 is 1223102311.

It can be written as a sum of positive squares in 4 ways, for example, as 330330625 + 801682596 = 18175^2 + 28314^2 .

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 1132013221 - 2¹ = 1132013219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1132013195 and 1132013204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132013021) 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, 65086 + ... + 80623.

It is an arithmetic number, because the mean of its divisors is an integer number (150154155).

Almost surely, 2^1132013221 is an apocalyptic number.

It is an amenable number.

1132013221 is a deficient number, since it is larger than the sum of its proper divisors (69220019).

1132013221 is a wasteful number, since it uses less digits than its factorization.

1132013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146183.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1132013221 is about 33645.4041586663. The cubic root of 1132013221 is about 1042.1986342195.

Adding to 1132013221 its reverse (1223102311), we get a palindrome (2355115532).

The spelling of 1132013221 in words is "one billion, one hundred thirty-two million, thirteen thousand, two hundred twenty-one".