1321443326226 has 32 divisors (see below), whose sum is σ = 2767207121280. Its totient is φ = 419891757824.

The previous prime is 1321443326183. The next prime is 1321443326233. The reversal of 1321443326226 is 6226233441231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16300311 + ... + 16381178.

It is an arithmetic number, because the mean of its divisors is an integer number (86475222540).

Almost surely, 2^{1321443326226} is an apocalyptic number.

1321443326226 is an abundant number, since it is smaller than the sum of its proper divisors (1445763795054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321443326226 is a wasteful number, since it uses less digits than its factorization.

1321443326226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32681810.

The product of its digits is 248832, while the sum is 39.

Adding to 1321443326226 its reverse (6226233441231), we get a palindrome (7547676767457).

The spelling of 1321443326226 in words is "one trillion, three hundred twenty-one billion, four hundred forty-three million, three hundred twenty-six thousand, two hundred twenty-six".