1226512229 has 2 divisors, whose sum is σ = 1226512230. Its totient is φ = 1226512228.

The previous prime is 1226512213. The next prime is 1226512271. The reversal of 1226512229 is 9222156221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1084187329 + 142324900 = 32927^2 + 11930^2 .

It is a cyclic number.

It is not a de Polignac number, because 1226512229 - 2⁴ = 1226512213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1226512195 and 1226512204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226512289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613256114 + 613256115.

It is an arithmetic number, because the mean of its divisors is an integer number (613256115).

Almost surely, 2^1226512229 is an apocalyptic number.

It is an amenable number.

1226512229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226512229 is an equidigital number, since it uses as much as digits as its factorization.

1226512229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 1226512229 is about 35021.5966083787. The cubic root of 1226512229 is about 1070.4275896085.

The spelling of 1226512229 in words is "one billion, two hundred twenty-six million, five hundred twelve thousand, two hundred twenty-nine".