12221121202 has 16 divisors (see below), whose sum is σ = 18672793920. Its totient is φ = 5997904848.

The previous prime is 12221121197. The next prime is 12221121221. The reversal of 12221121202 is 20212112221.

It is a happy number.

12221121202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 238638 + ... + 285289.

It is an arithmetic number, because the mean of its divisors is an integer number (1167049620).

Almost surely, 2^12221121202 is an apocalyptic number.

12221121202 is a deficient number, since it is larger than the sum of its proper divisors (6451672718).

12221121202 is a wasteful number, since it uses less digits than its factorization.

12221121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524145.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12221121202 its reverse (20212112221), we get a palindrome (32433233423).

The spelling of 12221121202 in words is "twelve billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred two".