1226122727 has 2 divisors, whose sum is σ = 1226122728. Its totient is φ = 1226122726.

The previous prime is 1226122721. The next prime is 1226122747. The reversal of 1226122727 is 7272216221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1226122727 - 2¹⁸ = 1225860583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1226122693 and 1226122702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226122721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613061363 + 613061364.

It is an arithmetic number, because the mean of its divisors is an integer number (613061364).

Almost surely, 2^1226122727 is an apocalyptic number.

1226122727 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226122727 is an equidigital number, since it uses as much as digits as its factorization.

1226122727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9408, while the sum is 32.

The square root of 1226122727 is about 35016.0352838525. The cubic root of 1226122727 is about 1070.3142661482.

Adding to 1226122727 its reverse (7272216221), we get a palindrome (8498338948).

The spelling of 1226122727 in words is "one billion, two hundred twenty-six million, one hundred twenty-two thousand, seven hundred twenty-seven".