1321222335153 has 16 divisors (see below), whose sum is σ = 2035912429440. Its totient is φ = 746501222016.

The previous prime is 1321222335151. The next prime is 1321222335221. The reversal of 1321222335153 is 3515332221231.

It is not a de Polignac number, because 1321222335153 - 2¹ = 1321222335151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321222335151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353455150 + ... + 353458887.

It is an arithmetic number, because the mean of its divisors is an integer number (127244526840).

Almost surely, 2^{1321222335153} is an apocalyptic number.

It is an amenable number.

1321222335153 is a deficient number, since it is larger than the sum of its proper divisors (714690094287).

1321222335153 is an equidigital number, since it uses as much as digits as its factorization.

1321222335153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706914136.

The product of its digits is 32400, while the sum is 33.

Adding to 1321222335153 its reverse (3515332221231), we get a palindrome (4836554556384).

The spelling of 1321222335153 in words is "one trillion, three hundred twenty-one billion, two hundred twenty-two million, three hundred thirty-five thousand, one hundred fifty-three".