12226891137779 has 16 divisors (see below), whose sum is σ = 12595709589120. Its totient is φ = 11861441336640.

The previous prime is 12226891137761. The next prime is 12226891137817. The reversal of 12226891137779 is 97773119862221.

12226891137779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12226891137779 - 2¹² = 12226891133683 is a prime.

It is a super-2 number, since 2×12226891137779² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12226891137709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246470192 + ... + 246519794.

It is an arithmetic number, because the mean of its divisors is an integer number (787231849320).

Almost surely, 2^{12226891137779} is an apocalyptic number.

12226891137779 is a deficient number, since it is larger than the sum of its proper divisors (368818451341).

12226891137779 is a wasteful number, since it uses less digits than its factorization.

12226891137779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83410.

The product of its digits is 32006016, while the sum is 65.

The spelling of 12226891137779 in words is "twelve trillion, two hundred twenty-six billion, eight hundred ninety-one million, one hundred thirty-seven thousand, seven hundred seventy-nine".