12221002220324 has 6 divisors (see below), whose sum is σ = 21386753885574. Its totient is φ = 6110501110160.

The previous prime is 12221002220293. The next prime is 12221002220369. The reversal of 12221002220324 is 42302220012221.

12221002220324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8525418908224 + 3695583312100 = 2919832^2 + 1922390^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12221002220324.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1527625277537 + ... + 1527625277544.

It is an arithmetic number, because the mean of its divisors is an integer number (3564458980929).

Almost surely, 2^{12221002220324} is an apocalyptic number.

It is an amenable number.

12221002220324 is a deficient number, since it is larger than the sum of its proper divisors (9165751665250).

12221002220324 is a wasteful number, since it uses less digits than its factorization.

12221002220324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055250555085 (or 3055250555083 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 12221002220324 its reverse (42302220012221), we get a palindrome (54523222232545).

The spelling of 12221002220324 in words is "twelve trillion, two hundred twenty-one billion, two million, two hundred twenty thousand, three hundred twenty-four".