2012212111212 has 36 divisors (see below), whose sum is σ = 5087657312920. Its totient is φ = 670574875392.

The previous prime is 2012212111183. The next prime is 2012212111213. The reversal of 2012212111212 is 2121112122102.

2012212111212 is a `hidden beast` number, since 20 + 1 + 221 + 211 + 1 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2012212111212² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2012212111213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6619918 + ... + 6917205.

Almost surely, 2^{2012212111212} is an apocalyptic number.

It is an amenable number.

2012212111212 is an abundant number, since it is smaller than the sum of its proper divisors (3075445201708).

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

2012212111212 is a wasteful number, since it uses less digits than its factorization.

2012212111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13541262 (or 13541257 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2012212111212 its reverse (2121112122102), we get a palindrome (4133324233314).

The spelling of 2012212111212 in words is "two trillion, twelve billion, two hundred twelve million, one hundred eleven thousand, two hundred twelve".