12222234467779 has 4 divisors (see below), whose sum is σ = 13968267963184. Its totient is φ = 10476200972376.

The previous prime is 12222234467759. The next prime is 12222234467837. The reversal of 12222234467779 is 97776443222221.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12222234467779 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (12222234467759) 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, 873016747692 + ... + 873016747705.

It is an arithmetic number, because the mean of its divisors is an integer number (3492066990796).

Almost surely, 2^{12222234467779} is an apocalyptic number.

12222234467779 is a deficient number, since it is larger than the sum of its proper divisors (1746033495405).

12222234467779 is an equidigital number, since it uses as much as digits as its factorization.

12222234467779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746033495404.

The product of its digits is 28449792, while the sum is 58.

The spelling of 12222234467779 in words is "twelve trillion, two hundred twenty-two billion, two hundred thirty-four million, four hundred sixty-seven thousand, seven hundred seventy-nine".