5511121229 has 2 divisors, whose sum is σ = 5511121230. Its totient is φ = 5511121228.

The previous prime is 5511121223. The next prime is 5511121283. The reversal of 5511121229 is 9221211155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4709665129 + 801456100 = 68627^2 + 28310^2 .

It is a cyclic number.

It is not a de Polignac number, because 5511121229 - 2¹² = 5511117133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5511121223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2755560614 + 2755560615.

It is an arithmetic number, because the mean of its divisors is an integer number (2755560615).

Almost surely, 2^5511121229 is an apocalyptic number.

It is an amenable number.

5511121229 is a deficient number, since it is larger than the sum of its proper divisors (1).

5511121229 is an equidigital number, since it uses as much as digits as its factorization.

5511121229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 29.

The square root of 5511121229 is about 74236.9263170290. The cubic root of 5511121229 is about 1766.3631185408.

The spelling of 5511121229 in words is "five billion, five hundred eleven million, one hundred twenty-one thousand, two hundred twenty-nine".