12002222111212 has 12 divisors (see below), whose sum is σ = 21004062627856. Its totient is φ = 6001061360400.

The previous prime is 12002222111203. The next prime is 12002222111291. The reversal of 12002222111212 is 21211122220021.

It is a super-2 number, since 2×12002222111212² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12002222111212.

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, 11877723 + ... + 12848530.

Almost surely, 2^{12002222111212} is an apocalyptic number.

It is an amenable number.

12002222111212 is a deficient number, since it is larger than the sum of its proper divisors (9001840516644).

12002222111212 is a wasteful number, since it uses less digits than its factorization.

12002222111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24847608 (or 24847606 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12002222111212 its reverse (21211122220021), we get a palindrome (33213344331233).

The spelling of 12002222111212 in words is "twelve trillion, two billion, two hundred twenty-two million, one hundred eleven thousand, two hundred twelve".