1223334445679 has 4 divisors (see below), whose sum is σ = 1223579460576. Its totient is φ = 1223089430784.

The previous prime is 1223334445661. The next prime is 1223334445681. The reversal of 1223334445679 is 9765444333221.

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 1223334445679 - 2¹² = 1223334441583 is a prime.

It is a super-3 number, since 3×1223334445679³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1223334445679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223334445579) 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, 122499959 + ... + 122509944.

It is an arithmetic number, because the mean of its divisors is an integer number (305894865144).

Almost surely, 2^{1223334445679} is an apocalyptic number.

1223334445679 is a deficient number, since it is larger than the sum of its proper divisors (245014897).

1223334445679 is an equidigital number, since it uses as much as digits as its factorization.

1223334445679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245014896.

The product of its digits is 13063680, while the sum is 53.

The spelling of 1223334445679 in words is "one trillion, two hundred twenty-three billion, three hundred thirty-four million, four hundred forty-five thousand, six hundred seventy-nine".