212204516 has 12 divisors (see below), whose sum is σ = 376588800. Its totient is φ = 104607720.

The previous prime is 212204501. The next prime is 212204537. The reversal of 212204516 is 615402212.

It is a happy number.

It is a super-2 number, since 2×212204516² = 90061513221588512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212204491 and 212204500.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 373316 + ... + 373883.

It is an arithmetic number, because the mean of its divisors is an integer number (31382400).

Almost surely, 2^212204516 is an apocalyptic number.

It is an amenable number.

212204516 is a deficient number, since it is larger than the sum of its proper divisors (164384284).

212204516 is a wasteful number, since it uses less digits than its factorization.

212204516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747274 (or 747272 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 212204516 is about 14567.2411938569. The cubic root of 212204516 is about 596.4648753589.

Adding to 212204516 its reverse (615402212), we get a palindrome (827606728).

The spelling of 212204516 in words is "two hundred twelve million, two hundred four thousand, five hundred sixteen".