12031320221222 has 16 divisors (see below), whose sum is σ = 18082986156000. Its totient is φ = 6003658889280.

The previous prime is 12031320221201. The next prime is 12031320221227. The reversal of 12031320221222 is 22212202313021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031320221227) 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 7 ways as a sum of consecutive naturals, for example, 37096322 + ... + 37419242.

It is an arithmetic number, because the mean of its divisors is an integer number (1130186634750).

Almost surely, 2^{12031320221222} is an apocalyptic number.

12031320221222 is a deficient number, since it is larger than the sum of its proper divisors (6051665934778).

12031320221222 is a wasteful number, since it uses less digits than its factorization.

12031320221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360031.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12031320221222 its reverse (22212202313021), we get a palindrome (34243522534243).

The spelling of 12031320221222 in words is "twelve trillion, thirty-one billion, three hundred twenty million, two hundred twenty-one thousand, two hundred twenty-two".