1322221220323 has 4 divisors (see below), whose sum is σ = 1322927159848. Its totient is φ = 1321515280800.

The previous prime is 1322221220321. The next prime is 1322221220339. The reversal of 1322221220323 is 3230221222231.

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

It is a cyclic number.

It is not a de Polignac number, because 1322221220323 - 2¹ = 1322221220321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1322221220321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352966953 + ... + 352970698.

It is an arithmetic number, because the mean of its divisors is an integer number (330731789962).

Almost surely, 2^{1322221220323} is an apocalyptic number.

1322221220323 is a deficient number, since it is larger than the sum of its proper divisors (705939525).

1322221220323 is an equidigital number, since it uses as much as digits as its factorization.

1322221220323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705939524.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1322221220323 its reverse (3230221222231), we get a palindrome (4552442442554).

The spelling of 1322221220323 in words is "one trillion, three hundred twenty-two billion, two hundred twenty-one million, two hundred twenty thousand, three hundred twenty-three".