212122422121212 has 36 divisors (see below), whose sum is σ = 537178597771816. Its totient is φ = 70578209913120.

The previous prime is 212122422121157. The next prime is 212122422121213. The reversal of 212122422121212 is 212121224221212.

212122422121212 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 2 + 2 + 422 + 1 + 21 + 212 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212122422121213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5385985339 + ... + 5386024722.

Almost surely, 2^{212122422121212} is an apocalyptic number.

It is an amenable number.

212122422121212 is an abundant number, since it is smaller than the sum of its proper divisors (325056175650604).

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

212122422121212 is a wasteful number, since it uses less digits than its factorization.

212122422121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10772010618 (or 10772010613 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

Adding to 212122422121212 its reverse (212121224221212), we get a palindrome (424243646342424).

The spelling of 212122422121212 in words is "two hundred twelve trillion, one hundred twenty-two billion, four hundred twenty-two million, one hundred twenty-one thousand, two hundred twelve".