212210223 has 8 divisors (see below), whose sum is σ = 283225008. Its totient is φ = 141334464.

The previous prime is 212210171. The next prime is 212210237. The reversal of 212210223 is 322012212.

It is a happy number.

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

It is not a de Polignac number, because 212210223 - 2⁸ = 212209967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210293) 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 7 ways as a sum of consecutive naturals, for example, 31140 + ... + 37337.

It is an arithmetic number, because the mean of its divisors is an integer number (35403126).

Almost surely, 2^212210223 is an apocalyptic number.

212210223 is a deficient number, since it is larger than the sum of its proper divisors (71014785).

212210223 is a wasteful number, since it uses less digits than its factorization.

212210223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69513.

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

The square root of 212210223 is about 14567.4370772624. The cubic root of 212210223 is about 596.4702223933.

Adding to 212210223 its reverse (322012212), we get a palindrome (534222435).

The spelling of 212210223 in words is "two hundred twelve million, two hundred ten thousand, two hundred twenty-three".