212844222 has 12 divisors (see below), whose sum is σ = 461162520. Its totient is φ = 70948068.

The previous prime is 212844221. The next prime is 212844241. The reversal of 212844222 is 222448212.

212844222 is a `hidden beast` number, since 212 + 8 + 442 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212844221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5912322 + ... + 5912357.

It is an arithmetic number, because the mean of its divisors is an integer number (38430210).

Almost surely, 2^212844222 is an apocalyptic number.

212844222 is an abundant number, since it is smaller than the sum of its proper divisors (248318298).

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

212844222 is a wasteful number, since it uses less digits than its factorization.

212844222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11824687 (or 11824684 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

The square root of 212844222 is about 14589.1816768453. The cubic root of 212844222 is about 597.0636363905.

The spelling of 212844222 in words is "two hundred twelve million, eight hundred forty-four thousand, two hundred twenty-two".