2012121021212 has 12 divisors (see below), whose sum is σ = 3548091267336. Its totient is φ = 998380659120.

The previous prime is 2012121021193. The next prime is 2012121021217. The reversal of 2012121021212 is 2121201212102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012121021217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1919962283 + ... + 1919963330.

It is an arithmetic number, because the mean of its divisors is an integer number (295674272278).

Almost surely, 2^{2012121021212} is an apocalyptic number.

It is an amenable number.

2012121021212 is a deficient number, since it is larger than the sum of its proper divisors (1535970246124).

2012121021212 is a wasteful number, since it uses less digits than its factorization.

2012121021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3839925748 (or 3839925746 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2012121021212 its reverse (2121201212102), we get a palindrome (4133322233314).

The spelling of 2012121021212 in words is "two trillion, twelve billion, one hundred twenty-one million, twenty-one thousand, two hundred twelve".