2012310211212 has 72 divisors (see below), whose sum is σ = 6119305920000. Its totient is φ = 544685469408.

The previous prime is 2012310211183. The next prime is 2012310211213. The reversal of 2012310211212 is 2121120132102.

2012310211212 is a `hidden beast` number, since 201 + 231 + 0 + 21 + 1 + 212 = 666.

It is a super-2 number, since 2×2012310211212² (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 (2012310211213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210136212 + ... + 210145787.

It is an arithmetic number, because the mean of its divisors is an integer number (84990360000).

Almost surely, 2^{2012310211212} is an apocalyptic number.

It is an amenable number.

2012310211212 is an abundant number, since it is smaller than the sum of its proper divisors (4106995708788).

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

2012310211212 is a wasteful number, since it uses less digits than its factorization.

2012310211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420282035 (or 420282030 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2012310211212 its reverse (2121120132102), we get a palindrome (4133430343314).

The spelling of 2012310211212 in words is "two trillion, twelve billion, three hundred ten million, two hundred eleven thousand, two hundred twelve".