12222344455679 has 8 divisors (see below), whose sum is σ = 12865671878640. Its totient is φ = 11579021646336.

The previous prime is 12222344455649. The next prime is 12222344455693. The reversal of 12222344455679 is 97655444322221.

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 12222344455679 - 2²⁰ = 12222343407103 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222344455649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5174687 + ... + 7156959.

It is an arithmetic number, because the mean of its divisors is an integer number (1608208984830).

Almost surely, 2^{12222344455679} is an apocalyptic number.

12222344455679 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12222344455679 is a deficient number, since it is larger than the sum of its proper divisors (643327422961).

12222344455679 is a wasteful number, since it uses less digits than its factorization.

12222344455679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306809.

The product of its digits is 29030400, while the sum is 56.

The spelling of 12222344455679 in words is "twelve trillion, two hundred twenty-two billion, three hundred forty-four million, four hundred fifty-five thousand, six hundred seventy-nine".