2012122210212 has 72 divisors (see below), whose sum is σ = 5186842085880. Its totient is φ = 657458480640.

The previous prime is 2012122210207. The next prime is 2012122210243. The reversal of 2012122210212 is 2120122212102.

It is a happy number.

2012122210212 is a `hidden beast` number, since 20 + 1 + 212 + 221 + 0 + 212 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 22651454016 + 1989470756196 = 150504^2 + 1410486^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1640512 + ... + 2591432.

It is an arithmetic number, because the mean of its divisors is an integer number (72039473415).

Almost surely, 2^{2012122210212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2012122210212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2593421042940).

2012122210212 is an abundant number, since it is smaller than the sum of its proper divisors (3174719875668).

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

2012122210212 is a wasteful number, since it uses less digits than its factorization.

2012122210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952093 (or 952088 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2012122210212 its reverse (2120122212102), we get a palindrome (4132244422314).

The spelling of 2012122210212 in words is "two trillion, twelve billion, one hundred twenty-two million, two hundred ten thousand, two hundred twelve".