12111021211112 has 32 divisors (see below), whose sum is σ = 22845928559520. Its totient is φ = 6018849426240.

The previous prime is 12111021211033. The next prime is 12111021211147. The reversal of 12111021211112 is 21111212011121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3461138 + ... + 6016769.

It is an arithmetic number, because the mean of its divisors is an integer number (713935267485).

Almost surely, 2^{12111021211112} is an apocalyptic number.

It is an amenable number.

12111021211112 is a deficient number, since it is larger than the sum of its proper divisors (10734907348408).

12111021211112 is a wasteful number, since it uses less digits than its factorization.

12111021211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9478881 (or 9478877 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 12111021211112 its reverse (21111212011121), we get a palindrome (33222233222233).

The spelling of 12111021211112 in words is "twelve trillion, one hundred eleven billion, twenty-one million, two hundred eleven thousand, one hundred twelve".