12220313021 has 16 divisors (see below), whose sum is σ = 14179995648. Its totient is φ = 10314927600.

The previous prime is 12220313003. The next prime is 12220313051. The reversal of 12220313021 is 12031302221.

It is a cyclic number.

It is not a de Polignac number, because 12220313021 - 2⁶ = 12220312957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220313051) 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 15 ways as a sum of consecutive naturals, for example, 146876 + ... + 214506.

It is an arithmetic number, because the mean of its divisors is an integer number (886249728).

Almost surely, 2^12220313021 is an apocalyptic number.

It is an amenable number.

12220313021 is a deficient number, since it is larger than the sum of its proper divisors (1959682627).

12220313021 is an equidigital number, since it uses as much as digits as its factorization.

12220313021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68032.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12220313021 its reverse (12031302221), we get a palindrome (24251615242).

The spelling of 12220313021 in words is "twelve billion, two hundred twenty million, three hundred thirteen thousand, twenty-one".