2012111201212 has 24 divisors (see below), whose sum is σ = 4029018900480. Its totient is φ = 861305550960.

The previous prime is 2012111201197. The next prime is 2012111201227. The reversal of 2012111201212 is 2121021112102.

It is an interprime number because it is at equal distance from previous prime (2012111201197) and next prime (2012111201227).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 42801964 + ... + 42848947.

It is an arithmetic number, because the mean of its divisors is an integer number (167875787520).

Almost surely, 2^{2012111201212} is an apocalyptic number.

It is an amenable number.

2012111201212 is an abundant number, since it is smaller than the sum of its proper divisors (2016907699268).

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

2012111201212 is a wasteful number, since it uses less digits than its factorization.

2012111201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85651761 (or 85651759 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2012111201212 its reverse (2121021112102), we get a palindrome (4133132313314).

The spelling of 2012111201212 in words is "two trillion, twelve billion, one hundred eleven million, two hundred one thousand, two hundred twelve".