12001222111002 has 32 divisors (see below), whose sum is σ = 24397252850880. Its totient is φ = 3934613061120.

The previous prime is 12001222110931. The next prime is 12001222111007. The reversal of 12001222111002 is 20011122210021.

It is not an unprimeable number, because it can be changed into a prime (12001222111007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5923249 + ... + 7686827.

It is an arithmetic number, because the mean of its divisors is an integer number (762414151590).

Almost surely, 2^{12001222111002} is an apocalyptic number.

12001222111002 is an abundant number, since it is smaller than the sum of its proper divisors (12396030739878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12001222111002 is a wasteful number, since it uses less digits than its factorization.

12001222111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782238.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12001222111002 its reverse (20011122210021), we get a palindrome (32012344321023).

The spelling of 12001222111002 in words is "twelve trillion, one billion, two hundred twenty-two million, one hundred eleven thousand, two".