12001111211122 has 96 divisors (see below), whose sum is σ = 20634495952896. Its totient is φ = 5227362455040.

The previous prime is 12001111211093. The next prime is 12001111211161. The reversal of 12001111211122 is 22111211110021.

It is a junction number, because it is equal to n+sod(n) for n = 12001111211096 and 12001111211105.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 113698623 + ... + 113804125.

It is an arithmetic number, because the mean of its divisors is an integer number (214942666176).

Almost surely, 2^{12001111211122} is an apocalyptic number.

12001111211122 is a deficient number, since it is larger than the sum of its proper divisors (8633384741774).

12001111211122 is a wasteful number, since it uses less digits than its factorization.

12001111211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105784 (or 105773 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 12001111211122 its reverse (22111211110021), we get a palindrome (34112322321143).

The spelling of 12001111211122 in words is "twelve trillion, one billion, one hundred eleven million, two hundred eleven thousand, one hundred twenty-two".