1226002726019 has 2 divisors, whose sum is σ = 1226002726020. Its totient is φ = 1226002726018.

The previous prime is 1226002726009. The next prime is 1226002726037. The reversal of 1226002726019 is 9106272006221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1226002726019 - 2²⁰ = 1226001677443 is a prime.

It is a super-2 number, since 2×1226002726019² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1226002726009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613001363009 + 613001363010.

It is an arithmetic number, because the mean of its divisors is an integer number (613001363010).

Almost surely, 2^{1226002726019} is an apocalyptic number.

1226002726019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226002726019 is an equidigital number, since it uses as much as digits as its factorization.

1226002726019 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 38.

The spelling of 1226002726019 in words is "one trillion, two hundred twenty-six billion, two million, seven hundred twenty-six thousand, nineteen".