1226002726009 has 2 divisors, whose sum is σ = 1226002726010. Its totient is φ = 1226002726008.

The previous prime is 1226002725991. The next prime is 1226002726019. The reversal of 1226002726009 is 9006272006221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 653866304400 + 572136421609 = 808620^2 + 756397^2 .

It is a cyclic number.

It is not a de Polignac number, because 1226002726009 - 2⁷ = 1226002725881 is a prime.

It is not a weakly prime, because it can be changed into another prime (1226002726019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613001363004 + 613001363005.

It is an arithmetic number, because the mean of its divisors is an integer number (613001363005).

Almost surely, 2^{1226002726009} is an apocalyptic number.

It is an amenable number.

1226002726009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226002726009 is an equidigital number, since it uses as much as digits as its factorization.

1226002726009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 1226002726009 in words is "one trillion, two hundred twenty-six billion, two million, seven hundred twenty-six thousand, nine".