12111210010012 has 24 divisors (see below), whose sum is σ = 22659237016416. Its totient is φ = 5644059030528.

The previous prime is 12111210010007. The next prime is 12111210010019. The reversal of 12111210010012 is 21001001211121.

It is a happy number.

It is a super-2 number, since 2×12111210010012² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12111210009974 and 12111210010001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111210010019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 864585373 + ... + 864599380.

It is an arithmetic number, because the mean of its divisors is an integer number (944134875684).

Almost surely, 2^{12111210010012} is an apocalyptic number.

It is an amenable number.

12111210010012 is a deficient number, since it is larger than the sum of its proper divisors (10548027006404).

12111210010012 is a wasteful number, since it uses less digits than its factorization.

12111210010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729184877 (or 1729184875 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12111210010012 its reverse (21001001211121), we get a palindrome (33112211221133).

The spelling of 12111210010012 in words is "twelve trillion, one hundred eleven billion, two hundred ten million, ten thousand, twelve".