12221122221002 has 32 divisors (see below), whose sum is σ = 18386291202048. Its totient is φ = 6092396640000.

The previous prime is 12221122220999. The next prime is 12221122221031. The reversal of 12221122221002 is 20012222112221.

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 15 ways as a sum of consecutive naturals, for example, 2588670002 + ... + 2588674722.

It is an arithmetic number, because the mean of its divisors is an integer number (574571600064).

Almost surely, 2^{12221122221002} is an apocalyptic number.

12221122221002 is a deficient number, since it is larger than the sum of its proper divisors (6165168981046).

12221122221002 is a wasteful number, since it uses less digits than its factorization.

12221122221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8006.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12221122221002 its reverse (20012222112221), we get a palindrome (32233344333223).

The spelling of 12221122221002 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred twenty-one thousand, two".