1223320302211 has 4 divisors (see below), whose sum is σ = 1398080345392. Its totient is φ = 1048560259032.

The previous prime is 1223320302203. The next prime is 1223320302241. The reversal of 1223320302211 is 1122030233221.

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 1223320302211 - 2³ = 1223320302203 is a prime.

It is a super-2 number, since 2×1223320302211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223320302241) 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 3 ways as a sum of consecutive naturals, for example, 87380021580 + ... + 87380021593.

It is an arithmetic number, because the mean of its divisors is an integer number (349520086348).

Almost surely, 2^{1223320302211} is an apocalyptic number.

1223320302211 is a deficient number, since it is larger than the sum of its proper divisors (174760043181).

1223320302211 is an equidigital number, since it uses as much as digits as its factorization.

1223320302211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174760043180.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1223320302211 its reverse (1122030233221), we get a palindrome (2345350535432).

The spelling of 1223320302211 in words is "one trillion, two hundred twenty-three billion, three hundred twenty million, three hundred two thousand, two hundred eleven".