212112213 has 16 divisors (see below), whose sum is σ = 299788416. Its totient is φ = 132940800.

The previous prime is 212112169. The next prime is 212112223. The reversal of 212112213 is 312211212.

It is a de Polignac number, because none of the positive numbers 2^k-212112213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212112192 and 212112201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212112223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59520 + ... + 62982.

It is an arithmetic number, because the mean of its divisors is an integer number (18736776).

Almost surely, 2^212112213 is an apocalyptic number.

It is an amenable number.

212112213 is a deficient number, since it is larger than the sum of its proper divisors (87676203).

212112213 is a wasteful number, since it uses less digits than its factorization.

212112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4684.

The product of its digits is 48, while the sum is 15.

The square root of 212112213 is about 14564.0726790277. The cubic root of 212112213 is about 596.3783809982.

Adding to 212112213 its reverse (312211212), we get a palindrome (524323425).

The spelling of 212112213 in words is "two hundred twelve million, one hundred twelve thousand, two hundred thirteen".