212224332 has 12 divisors (see below), whose sum is σ = 495190136. Its totient is φ = 70741440.

The previous prime is 212224321. The next prime is 212224351. The reversal of 212224332 is 233422212.

It is a tau number, because it is divible by the number of its divisors (12).

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

It is a junction number, because it is equal to n+sod(n) for n = 212224299 and 212224308.

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, 8842669 + ... + 8842692.

Almost surely, 2^212224332 is an apocalyptic number.

It is an amenable number.

212224332 is an abundant number, since it is smaller than the sum of its proper divisors (282965804).

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

212224332 is a wasteful number, since it uses less digits than its factorization.

212224332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17685368 (or 17685366 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 212224332 is about 14567.9213342192. The cubic root of 212224332 is about 596.4834410651.

Adding to 212224332 its reverse (233422212), we get a palindrome (445646544).

The spelling of 212224332 in words is "two hundred twelve million, two hundred twenty-four thousand, three hundred thirty-two".