1229488111 has 2 divisors, whose sum is σ = 1229488112. Its totient is φ = 1229488110.

The previous prime is 1229488061. The next prime is 1229488129. The reversal of 1229488111 is 1118849221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1229488111 - 2⁷ = 1229487983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1229488511) 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, 614744055 + 614744056.

It is an arithmetic number, because the mean of its divisors is an integer number (614744056).

Almost surely, 2^1229488111 is an apocalyptic number.

1229488111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229488111 is an equidigital number, since it uses as much as digits as its factorization.

1229488111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 37.

The square root of 1229488111 is about 35064.0572524059. The cubic root of 1229488111 is about 1071.2926151917.

The spelling of 1229488111 in words is "one billion, two hundred twenty-nine million, four hundred eighty-eight thousand, one hundred eleven".