212310222 has 8 divisors (see below), whose sum is σ = 424620456. Its totient is φ = 70770072.

The previous prime is 212310187. The next prime is 212310223. The reversal of 212310222 is 222013212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

212310222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212310223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17692513 + ... + 17692524.

It is an arithmetic number, because the mean of its divisors is an integer number (53077557).

Almost surely, 2^212310222 is an apocalyptic number.

212310222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

212310222 is a wasteful number, since it uses less digits than its factorization.

212310222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35385042.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 212310222 is about 14570.8689514387. The cubic root of 212310222 is about 596.5638984635.

Adding to 212310222 its reverse (222013212), we get a palindrome (434323434).

The spelling of 212310222 in words is "two hundred twelve million, three hundred ten thousand, two hundred twenty-two".