12221020221002 has 16 divisors (see below), whose sum is σ = 18963740193792. Its totient is φ = 5900624951760.

The previous prime is 12221020220917. The next prime is 12221020221019. The reversal of 12221020221002 is 20012202012221.

It is a happy number.

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, 212836553 + ... + 212893964.

It is an arithmetic number, because the mean of its divisors is an integer number (1185233762112).

Almost surely, 2^{12221020221002} is an apocalyptic number.

12221020221002 is a deficient number, since it is larger than the sum of its proper divisors (6742719972790).

12221020221002 is a wasteful number, since it uses less digits than its factorization.

12221020221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425731013.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12221020221002 its reverse (20012202012221), we get a palindrome (32233222233223).

The spelling of 12221020221002 in words is "twelve trillion, two hundred twenty-one billion, twenty million, two hundred twenty-one thousand, two".