212868212 has 12 divisors (see below), whose sum is σ = 372678180. Its totient is φ = 106388736.

The previous prime is 212868209. The next prime is 212868233.

212868212 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 96314596 + 116553616 = 9814^2 + 10796^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614 + ... + 20642.

It is an arithmetic number, because the mean of its divisors is an integer number (31056515).

Almost surely, 2^212868212 is an apocalyptic number.

It is an amenable number.

212868212 is a deficient number, since it is larger than the sum of its proper divisors (159809968).

212868212 is a wasteful number, since it uses less digits than its factorization.

212868212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22690 (or 22688 counting only the distinct ones).

The product of its digits is 6144, while the sum is 32.

The square root of 212868212 is about 14590.0038382449. The cubic root of 212868212 is about 597.0860675351.

The spelling of 212868212 in words is "two hundred twelve million, eight hundred sixty-eight thousand, two hundred twelve".