12111002020012 has 48 divisors (see below), whose sum is σ = 25583866640640. Its totient is φ = 4900466457792.

The previous prime is 12111002019947. The next prime is 12111002020057. The reversal of 12111002020012 is 21002020011121.

It is a junction number, because it is equal to n+sod(n) for n = 12111002019974 and 12111002020001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38692318 + ... + 39004069.

It is an arithmetic number, because the mean of its divisors is an integer number (532997221680).

Almost surely, 2^{12111002020012} is an apocalyptic number.

It is an amenable number.

12111002020012 is an abundant number, since it is smaller than the sum of its proper divisors (13472864620628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12111002020012 is a wasteful number, since it uses less digits than its factorization.

12111002020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77696710 (or 77696708 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12111002020012 its reverse (21002020011121), we get a palindrome (33113022031133).

The spelling of 12111002020012 in words is "twelve trillion, one hundred eleven billion, two million, twenty thousand, twelve".