1228835650069 has 2 divisors, whose sum is σ = 1228835650070. Its totient is φ = 1228835650068.

The previous prime is 1228835650033. The next prime is 1228835650079. The reversal of 1228835650069 is 9600565388221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 662034459025 + 566801191044 = 813655^2 + 752862^2 .

It is a cyclic number.

It is not a de Polignac number, because 1228835650069 - 2¹¹ = 1228835648021 is a prime.

It is a super-2 number, since 2×1228835650069² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1228835650079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614417825034 + 614417825035.

It is an arithmetic number, because the mean of its divisors is an integer number (614417825035).

Almost surely, 2^{1228835650069} is an apocalyptic number.

It is an amenable number.

1228835650069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228835650069 is an equidigital number, since it uses as much as digits as its factorization.

1228835650069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 1228835650069 in words is "one trillion, two hundred twenty-eight billion, eight hundred thirty-five million, six hundred fifty thousand, sixty-nine".