12223351277779 has 4 divisors (see below), whose sum is σ = 12231151758784. Its totient is φ = 12215550796776.

The previous prime is 12223351277773. The next prime is 12223351277789. The reversal of 12223351277779 is 97777215332221.

It is a happy number.

12223351277779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12223351277779 - 2³ = 12223351277771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12223351277771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3900238152 + ... + 3900241285.

It is an arithmetic number, because the mean of its divisors is an integer number (3057787939696).

Almost surely, 2^{12223351277779} is an apocalyptic number.

12223351277779 is a deficient number, since it is larger than the sum of its proper divisors (7800481005).

12223351277779 is an equidigital number, since it uses as much as digits as its factorization.

12223351277779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7800481004.

The product of its digits is 15558480, while the sum is 58.

The spelling of 12223351277779 in words is "twelve trillion, two hundred twenty-three billion, three hundred fifty-one million, two hundred seventy-seven thousand, seven hundred seventy-nine".