212412223 has 8 divisors (see below), whose sum is σ = 217969920. Its totient is φ = 206897880.

The previous prime is 212412203. The next prime is 212412241. The reversal of 212412223 is 322214212.

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

It is a cyclic number.

It is not a de Polignac number, because 212412223 - 2¹⁷ = 212281151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212412223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212412203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 793 + ... + 20626.

It is an arithmetic number, because the mean of its divisors is an integer number (27246240).

Almost surely, 2^212412223 is an apocalyptic number.

212412223 is a deficient number, since it is larger than the sum of its proper divisors (5557697).

212412223 is a wasteful number, since it uses less digits than its factorization.

212412223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21677.

The product of its digits is 384, while the sum is 19.

The square root of 212412223 is about 14574.3686998786. The cubic root of 212412223 is about 596.6594196485.

Adding to 212412223 its reverse (322214212), we get a palindrome (534626435).

The spelling of 212412223 in words is "two hundred twelve million, four hundred twelve thousand, two hundred twenty-three".