12101311012012 has 48 divisors (see below), whose sum is σ = 23398474724352. Its totient is φ = 5447010919680.

The previous prime is 12101311012003. The next prime is 12101311012123. The reversal of 12101311012012 is 21021011310121.

It is a happy 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, 111776587 + ... + 111884797.

It is an arithmetic number, because the mean of its divisors is an integer number (487468223424).

Almost surely, 2^{12101311012012} is an apocalyptic number.

It is an amenable number.

12101311012012 is a deficient number, since it is larger than the sum of its proper divisors (11297163712340).

12101311012012 is a wasteful number, since it uses less digits than its factorization.

12101311012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179758 (or 179756 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 12101311012012 its reverse (21021011310121), we get a palindrome (33122322322133).

The spelling of 12101311012012 in words is "twelve trillion, one hundred one billion, three hundred eleven million, twelve thousand, twelve".