212210224 has 10 divisors (see below), whose sum is σ = 411157340. Its totient is φ = 106105104.

The previous prime is 212210171. The next prime is 212210237. The reversal of 212210224 is 422012212.

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 13263139 = 212210224 / (2 + 1 + 2 + 2 + 1 + 0 + 2 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 212210198 and 212210207.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6631554 + ... + 6631585.

It is an arithmetic number, because the mean of its divisors is an integer number (41115734).

Almost surely, 2^212210224 is an apocalyptic number.

It is an amenable number.

212210224 is a deficient number, since it is larger than the sum of its proper divisors (198947116).

212210224 is a wasteful number, since it uses less digits than its factorization.

212210224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13263147 (or 13263141 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 212210224 is about 14567.4371115856. The cubic root of 212210224 is about 596.4702233302.

Adding to 212210224 its reverse (422012212), we get a palindrome (634222436).

The spelling of 212210224 in words is "two hundred twelve million, two hundred ten thousand, two hundred twenty-four".