12111012001012 has 48 divisors (see below), whose sum is σ = 22287697801600. Its totient is φ = 5751104188032.

The previous prime is 12111012001009. The next prime is 12111012001027. The reversal of 12111012001012 is 21010021011121.

It is a happy number.

It is a super-2 number, since 2×12111012001012² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12111012000983 and 12111012001001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9243553 + ... + 10472119.

Almost surely, 2^{12111012001012} is an apocalyptic number.

It is an amenable number.

12111012001012 is a deficient number, since it is larger than the sum of its proper divisors (10176685800588).

12111012001012 is a wasteful number, since it uses less digits than its factorization.

12111012001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230200 (or 1230198 counting only the distinct ones).

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

Adding to 12111012001012 its reverse (21010021011121), we get a palindrome (33121033012133).

The spelling of 12111012001012 in words is "twelve trillion, one hundred eleven billion, twelve million, one thousand, twelve".