212212212 has 24 divisors (see below), whose sum is σ = 504506016. Its totient is φ = 69402528.

The previous prime is 212212201. The next prime is 212212213.

212212212 is nontrivially palindromic in base 10.

212212212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

212212212 is a modest number, since divided by 212212 gives 212 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 212212191 and 212212200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166198 + ... + 167469.

It is an arithmetic number, because the mean of its divisors is an integer number (21021084).

Almost surely, 2^212212212 is an apocalyptic number.

It is an amenable number.

212212212 is an abundant number, since it is smaller than the sum of its proper divisors (292293804).

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

212212212 is a wasteful number, since it uses less digits than its factorization.

212212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333727 (or 333725 counting only the distinct ones).

The product of its digits is 64, while the sum is 15.

The square root of 212212212 is about 14567.5053458030. The cubic root of 212212212 is about 596.4720859158.

It can be divided in two parts, 212212 and 212, that multiplied together give a palindrome (44988944).

The spelling of 212212212 in words is "two hundred twelve million, two hundred twelve thousand, two hundred twelve".