12227777785 has 8 divisors (see below), whose sum is σ = 14681859840. Its totient is φ = 9776537904.

The previous prime is 12227777687. The next prime is 12227777791. The reversal of 12227777785 is 58777772221.

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 12227777785 - 2⁷ = 12227777657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701065 + ... + 718294.

It is an arithmetic number, because the mean of its divisors is an integer number (1835232480).

Almost surely, 2^12227777785 is an apocalyptic number.

It is an amenable number.

12227777785 is a deficient number, since it is larger than the sum of its proper divisors (2454082055).

12227777785 is a wasteful number, since it uses less digits than its factorization.

12227777785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421087.

The product of its digits is 5378240, while the sum is 55.

The spelling of 12227777785 in words is "twelve billion, two hundred twenty-seven million, seven hundred seventy-seven thousand, seven hundred eighty-five".