12221221221202 has 16 divisors (see below), whose sum is σ = 20951445503232. Its totient is φ = 5237471099520.

The previous prime is 12221221221191. The next prime is 12221221221233. The reversal of 12221221221202 is 20212212212221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15871999 + ... + 16624162.

It is an arithmetic number, because the mean of its divisors is an integer number (1309465343952).

Almost surely, 2^{12221221221202} is an apocalyptic number.

12221221221202 is a deficient number, since it is larger than the sum of its proper divisors (8730224282030).

12221221221202 is a wasteful number, since it uses less digits than its factorization.

12221221221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32523033.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 12221221221202 its reverse (20212212212221), we get a palindrome (32433433433423).

The spelling of 12221221221202 in words is "twelve trillion, two hundred twenty-one billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred two".