12102221111012 has 12 divisors (see below), whose sum is σ = 21494989734960. Its totient is φ = 5960795472456.

The previous prime is 12102221110943. The next prime is 12102221111039. The reversal of 12102221111012 is 21011112220121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22578770462 + ... + 22578770997.

It is an arithmetic number, because the mean of its divisors is an integer number (1791249144580).

Almost surely, 2^{12102221111012} is an apocalyptic number.

It is an amenable number.

12102221111012 is a deficient number, since it is larger than the sum of its proper divisors (9392768623948).

12102221111012 is a wasteful number, since it uses less digits than its factorization.

12102221111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45157541530 (or 45157541528 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12102221111012 its reverse (21011112220121), we get a palindrome (33113333331133).

The spelling of 12102221111012 in words is "twelve trillion, one hundred two billion, two hundred twenty-one million, one hundred eleven thousand, twelve".