111001229 has 2 divisors, whose sum is σ = 111001230. Its totient is φ = 111001228.

The previous prime is 111001213. The next prime is 111001237. The reversal of 111001229 is 922100111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61622500 + 49378729 = 7850^2 + 7027^2 .

It is a cyclic number.

It is not a de Polignac number, because 111001229 - 2⁴ = 111001213 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111001729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500614 + 55500615.

It is an arithmetic number, because the mean of its divisors is an integer number (55500615).

Almost surely, 2^111001229 is an apocalyptic number.

It is an amenable number.

111001229 is a deficient number, since it is larger than the sum of its proper divisors (1).

111001229 is an equidigital number, since it uses as much as digits as its factorization.

111001229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 111001229 is about 10535.7120784501. The cubic root of 111001229 is about 480.5913270714.

The spelling of 111001229 in words is "one hundred eleven million, one thousand, two hundred twenty-nine".