12220654305 has 16 divisors (see below), whose sum is σ = 20183791104. Its totient is φ = 6307434240.

The previous prime is 12220654301. The next prime is 12220654321. The reversal of 12220654305 is 50345602221.

It is not a de Polignac number, because 12220654305 - 2² = 12220654301 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12220654301) 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, 13140024 + ... + 13140953.

It is an arithmetic number, because the mean of its divisors is an integer number (1261486944).

Almost surely, 2^12220654305 is an apocalyptic number.

12220654305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12220654305 is a deficient number, since it is larger than the sum of its proper divisors (7963136799).

12220654305 is a wasteful number, since it uses less digits than its factorization.

12220654305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26281016.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 12220654305 in words is "twelve billion, two hundred twenty million, six hundred fifty-four thousand, three hundred five".