12228766845 has 16 divisors (see below), whose sum is σ = 20416724352. Its totient is φ = 6238443200.

The previous prime is 12228766831. The next prime is 12228766873. The reversal of 12228766845 is 54866782221.

It is not a de Polignac number, because 12228766845 - 2⁷ = 12228766717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17722506 + ... + 17723195.

It is an arithmetic number, because the mean of its divisors is an integer number (1276045272).

Almost surely, 2^12228766845 is an apocalyptic number.

12228766845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12228766845 is a deficient number, since it is larger than the sum of its proper divisors (8187957507).

12228766845 is a wasteful number, since it uses less digits than its factorization.

12228766845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35445732.

The product of its digits is 2580480, while the sum is 51.

The spelling of 12228766845 in words is "twelve billion, two hundred twenty-eight million, seven hundred sixty-six thousand, eight hundred forty-five".