1132221113 has 4 divisors (see below), whose sum is σ = 1137165540. Its totient is φ = 1127276688.

The previous prime is 1132221107. The next prime is 1132221119. The reversal of 1132221113 is 3111222311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3111222311 = 41 ⋅75883471.

It is an interprime number because it is at equal distance from previous prime (1132221107) and next prime (1132221119).

It can be written as a sum of positive squares in 2 ways, for example, as 1064521129 + 67699984 = 32627^2 + 8228^2 .

It is a cyclic number.

It is not a de Polignac number, because 1132221113 - 2⁸ = 1132220857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1132221091 and 1132221100.

It is not an unprimeable number, because it can be changed into a prime (1132221119) 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, 2471870 + ... + 2472327.

It is an arithmetic number, because the mean of its divisors is an integer number (284291385).

Almost surely, 2^1132221113 is an apocalyptic number.

It is an amenable number.

1132221113 is a deficient number, since it is larger than the sum of its proper divisors (4944427).

1132221113 is an equidigital number, since it uses as much as digits as its factorization.

1132221113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4944426.

The product of its digits is 72, while the sum is 17.

The square root of 1132221113 is about 33648.4934729625. The cubic root of 1132221113 is about 1042.2624295570.

Adding to 1132221113 its reverse (3111222311), we get a palindrome (4243443424).

The spelling of 1132221113 in words is "one billion, one hundred thirty-two million, two hundred twenty-one thousand, one hundred thirteen".