2322312221221 has 4 divisors (see below), whose sum is σ = 2322316126944. Its totient is φ = 2322308315500.

The previous prime is 2322312221219. The next prime is 2322312221261. The reversal of 2322312221221 is 1221222132232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2322312221221 - 2¹ = 2322312221219 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 (2322312221261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 855385 + ... + 2318686.

It is an arithmetic number, because the mean of its divisors is an integer number (580579031736).

Almost surely, 2^{2322312221221} is an apocalyptic number.

It is an amenable number.

2322312221221 is a deficient number, since it is larger than the sum of its proper divisors (3905723).

2322312221221 is an equidigital number, since it uses as much as digits as its factorization.

2322312221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3905722.

The product of its digits is 2304, while the sum is 25.

Adding to 2322312221221 its reverse (1221222132232), we get a palindrome (3543534353453).

The spelling of 2322312221221 in words is "two trillion, three hundred twenty-two billion, three hundred twelve million, two hundred twenty-one thousand, two hundred twenty-one".