1321033401222 has 32 divisors (see below), whose sum is σ = 2672193853440. Its totient is φ = 435351581280.

The previous prime is 1321033401217. The next prime is 1321033401223. The reversal of 1321033401222 is 2221043301231.

It is a junction number, because it is equal to n+sod(n) for n = 1321033401192 and 1321033401201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321033401223) by changing a digit.

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, 3349197 + ... + 3722792.

It is an arithmetic number, because the mean of its divisors is an integer number (83506057920).

Almost surely, 2^{1321033401222} is an apocalyptic number.

1321033401222 is an abundant number, since it is smaller than the sum of its proper divisors (1351160452218).

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

1321033401222 is a wasteful number, since it uses less digits than its factorization.

1321033401222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7072348.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1321033401222 its reverse (2221043301231), we get a palindrome (3542076702453).

Subtracting 1321033401222 from its reverse (2221043301231), we obtain a palindrome (900009900009).

The spelling of 1321033401222 in words is "one trillion, three hundred twenty-one billion, thirty-three million, four hundred one thousand, two hundred twenty-two".