1130132221 has 2 divisors, whose sum is σ = 1130132222. Its totient is φ = 1130132220.

The previous prime is 1130132219. The next prime is 1130132231. The reversal of 1130132221 is 1222310311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1101509721 + 28622500 = 33189^2 + 5350^2 .

It is a cyclic number.

It is not a de Polignac number, because 1130132221 - 2¹ = 1130132219 is a prime.

Together with 1130132219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1130132195 and 1130132204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1130132231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565066110 + 565066111.

It is an arithmetic number, because the mean of its divisors is an integer number (565066111).

Almost surely, 2^1130132221 is an apocalyptic number.

It is an amenable number.

1130132221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130132221 is an equidigital number, since it uses as much as digits as its factorization.

1130132221 is an evil number, because the sum of its binary digits is even.

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

The square root of 1130132221 is about 33617.4392391806. The cubic root of 1130132221 is about 1041.6210607390.

Adding to 1130132221 its reverse (1222310311), we get a palindrome (2352442532).

The spelling of 1130132221 in words is "one billion, one hundred thirty million, one hundred thirty-two thousand, two hundred twenty-one".