12223012021 has 16 divisors (see below), whose sum is σ = 13491505728. Its totient is φ = 10981152000.

The previous prime is 12223011973. The next prime is 12223012027. The reversal of 12223012021 is 12021032221.

It is a happy number.

12223012021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12223012021 - 2¹¹ = 12223009973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12223011986 and 12223012004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223012027) 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 15 ways as a sum of consecutive naturals, for example, 597661 + ... + 617773.

It is an arithmetic number, because the mean of its divisors is an integer number (843219108).

Almost surely, 2^12223012021 is an apocalyptic number.

12223012021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12223012021 is a deficient number, since it is larger than the sum of its proper divisors (1268493707).

12223012021 is a wasteful number, since it uses less digits than its factorization.

12223012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20772.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12223012021 its reverse (12021032221), we get a palindrome (24244044242).

The spelling of 12223012021 in words is "twelve billion, two hundred twenty-three million, twelve thousand, twenty-one".