12012112111002 has 32 divisors (see below), whose sum is σ = 24328653619200. Its totient is φ = 3953300493168.

The previous prime is 12012112110989. The next prime is 12012112111007. The reversal of 12012112111002 is 20011121121021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12012112111007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52708383 + ... + 52935789.

It is an arithmetic number, because the mean of its divisors is an integer number (760270425600).

Almost surely, 2^{12012112111002} is an apocalyptic number.

12012112111002 is an abundant number, since it is smaller than the sum of its proper divisors (12316541508198).

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

12012112111002 is a wasteful number, since it uses less digits than its factorization.

12012112111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338930.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12012112111002 its reverse (20011121121021), we get a palindrome (32023233232023).

The spelling of 12012112111002 in words is "twelve trillion, twelve billion, one hundred twelve million, one hundred eleven thousand, two".