1131114221 has 2 divisors, whose sum is σ = 1131114222. Its totient is φ = 1131114220.

The previous prime is 1131114199. The next prime is 1131114233. The reversal of 1131114221 is 1224111311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1115226025 + 15888196 = 33395^2 + 3986^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131114221 - 2⁶ = 1131114157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1131114221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131114121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565557110 + 565557111.

It is an arithmetic number, because the mean of its divisors is an integer number (565557111).

Almost surely, 2^1131114221 is an apocalyptic number.

It is an amenable number.

1131114221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131114221 is an equidigital number, since it uses as much as digits as its factorization.

1131114221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48, while the sum is 17.

The square root of 1131114221 is about 33632.0415823958. The cubic root of 1131114221 is about 1041.9226702142.

Adding to 1131114221 its reverse (1224111311), we get a palindrome (2355225532).

The spelling of 1131114221 in words is "one billion, one hundred thirty-one million, one hundred fourteen thousand, two hundred twenty-one".