1143222611 has 2 divisors, whose sum is σ = 1143222612. Its totient is φ = 1143222610.

The previous prime is 1143222599. The next prime is 1143222637. The reversal of 1143222611 is 1162223411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1143222611 - 2¹⁰ = 1143221587 is a prime.

It is not a weakly prime, because it can be changed into another prime (1143222671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571611305 + 571611306.

It is an arithmetic number, because the mean of its divisors is an integer number (571611306).

Almost surely, 2^1143222611 is an apocalyptic number.

1143222611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143222611 is an equidigital number, since it uses as much as digits as its factorization.

1143222611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 23.

The square root of 1143222611 is about 33811.5751038014. The cubic root of 1143222611 is about 1045.6273519104.

It can be divided in two parts, 11432 and 22611, that added together give a palindrome (34043).

The spelling of 1143222611 in words is "one billion, one hundred forty-three million, two hundred twenty-two thousand, six hundred eleven".