12227732777 has 16 divisors (see below), whose sum is σ = 13921992000. Its totient is φ = 10646334144.

The previous prime is 12227732773. The next prime is 12227732789. The reversal of 12227732777 is 77723772221.

It is not a de Polignac number, because 12227732777 - 2² = 12227732773 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12227732771) 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, 51527 + ... + 164652.

It is an arithmetic number, because the mean of its divisors is an integer number (870124500).

Almost surely, 2^12227732777 is an apocalyptic number.

It is an amenable number.

12227732777 is a deficient number, since it is larger than the sum of its proper divisors (1694259223).

12227732777 is a wasteful number, since it uses less digits than its factorization.

12227732777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216440.

The product of its digits is 806736, while the sum is 47.

The spelling of 12227732777 in words is "twelve billion, two hundred twenty-seven million, seven hundred thirty-two thousand, seven hundred seventy-seven".