1226788813109 has 8 divisors (see below), whose sum is σ = 1272749211360. Its totient is φ = 1181072237296.

The previous prime is 1226788813069. The next prime is 1226788813139. The reversal of 1226788813109 is 9013188876221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1226788813109 - 2¹⁶ = 1226788747573 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226788813139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60945359 + ... + 60965484.

It is an arithmetic number, because the mean of its divisors is an integer number (159093651420).

Almost surely, 2^{1226788813109} is an apocalyptic number.

It is an amenable number.

1226788813109 is a deficient number, since it is larger than the sum of its proper divisors (45960398251).

1226788813109 is a wasteful number, since it uses less digits than its factorization.

1226788813109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121911219.

The product of its (nonzero) digits is 2322432, while the sum is 56.

The spelling of 1226788813109 in words is "one trillion, two hundred twenty-six billion, seven hundred eighty-eight million, eight hundred thirteen thousand, one hundred nine".