1222478134589 has 4 divisors (see below), whose sum is σ = 1275629357856. Its totient is φ = 1169326911324.

The previous prime is 1222478134573. The next prime is 1222478134613. The reversal of 1222478134589 is 9854318742221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1222478134589 - 2⁴ = 1222478134573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222478134529) 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, 26575611599 + ... + 26575611644.

It is an arithmetic number, because the mean of its divisors is an integer number (318907339464).

Almost surely, 2^{1222478134589} is an apocalyptic number.

It is an amenable number.

1222478134589 is a deficient number, since it is larger than the sum of its proper divisors (53151223267).

1222478134589 is an equidigital number, since it uses as much as digits as its factorization.

1222478134589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53151223266.

The product of its digits is 7741440, while the sum is 56.

The spelling of 1222478134589 in words is "one trillion, two hundred twenty-two billion, four hundred seventy-eight million, one hundred thirty-four thousand, five hundred eighty-nine".