12111021020012 has 12 divisors (see below), whose sum is σ = 22309775563320. Its totient is φ = 5736799430496.

The previous prime is 12111021020003. The next prime is 12111021020027. The reversal of 12111021020012 is 21002012011121.

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, 79677769793 + ... + 79677769944.

It is an arithmetic number, because the mean of its divisors is an integer number (1859147963610).

Almost surely, 2^{12111021020012} is an apocalyptic number.

It is an amenable number.

12111021020012 is a deficient number, since it is larger than the sum of its proper divisors (10198754543308).

12111021020012 is a wasteful number, since it uses less digits than its factorization.

12111021020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159355539760 (or 159355539758 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12111021020012 its reverse (21002012011121), we get a palindrome (33113033031133).

The spelling of 12111021020012 in words is "twelve trillion, one hundred eleven billion, twenty-one million, twenty thousand, twelve".