2122122011212 has 24 divisors (see below), whose sum is σ = 4244373391104. Its totient is φ = 909453140112.

The previous prime is 2122122011189. The next prime is 2122122011213. The reversal of 2122122011212 is 2121102212212.

It is a self number, because there is not a number n which added to its sum of digits gives 2122122011212.

It is not an unprimeable number, because it can be changed into a prime (2122122011213) 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 7 ways as a sum of consecutive naturals, for example, 206398 + ... + 2070469.

It is an arithmetic number, because the mean of its divisors is an integer number (176848891296).

Almost surely, 2^{2122122011212} is an apocalyptic number.

It is an amenable number.

2122122011212 is an abundant number, since it is smaller than the sum of its proper divisors (2122251379892).

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

2122122011212 is a wasteful number, since it uses less digits than its factorization.

2122122011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310165 (or 2310163 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2122122011212 its reverse (2121102212212), we get a palindrome (4243224223424).

The spelling of 2122122011212 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-two million, eleven thousand, two hundred twelve".