1322120102221 has 4 divisors (see below), whose sum is σ = 1340231336572. Its totient is φ = 1304008867872.

The previous prime is 1322120102213. The next prime is 1322120102239. The reversal of 1322120102221 is 1222010212231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1122033866121 + 200086236100 = 1059261^2 + 447310^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322120102221 - 2³ = 1322120102213 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 (1322120102521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9055617066 + ... + 9055617211.

It is an arithmetic number, because the mean of its divisors is an integer number (335057834143).

Almost surely, 2^{1322120102221} is an apocalyptic number.

It is an amenable number.

1322120102221 is a deficient number, since it is larger than the sum of its proper divisors (18111234351).

1322120102221 is an equidigital number, since it uses as much as digits as its factorization.

1322120102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18111234350.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1322120102221 its reverse (1222010212231), we get a palindrome (2544130314452).

The spelling of 1322120102221 in words is "one trillion, three hundred twenty-two billion, one hundred twenty million, one hundred two thousand, two hundred twenty-one".