1321224421330 has 16 divisors (see below), whose sum is σ = 2594404318464. Its totient is φ = 480445244080.

The previous prime is 1321224421289. The next prime is 1321224421333. The reversal of 1321224421330 is 331244221231.

It is not an unprimeable number, because it can be changed into a prime (1321224421333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6005565442 + ... + 6005565661.

It is an arithmetic number, because the mean of its divisors is an integer number (162150269904).

Almost surely, 2^{1321224421330} is an apocalyptic number.

1321224421330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321224421330 is a deficient number, since it is larger than the sum of its proper divisors (1273179897134).

1321224421330 is a wasteful number, since it uses less digits than its factorization.

1321224421330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12011131121.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1321224421330 its reverse (331244221231), we get a palindrome (1652468642561).

The spelling of 1321224421330 in words is "one trillion, three hundred twenty-one billion, two hundred twenty-four million, four hundred twenty-one thousand, three hundred thirty".