212422223 has 8 divisors (see below), whose sum is σ = 240802800. Its totient is φ = 185761728.

The previous prime is 212422219. The next prime is 212422241. The reversal of 212422223 is 322224212.

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 212422223 - 2² = 212422219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212422195 and 212422204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212422213) 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, 429758 + ... + 430251.

It is an arithmetic number, because the mean of its divisors is an integer number (30100350).

Almost surely, 2^212422223 is an apocalyptic number.

212422223 is a deficient number, since it is larger than the sum of its proper divisors (28380577).

212422223 is a wasteful number, since it uses less digits than its factorization.

212422223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860041.

The product of its digits is 768, while the sum is 20.

The square root of 212422223 is about 14574.7117638738. The cubic root of 212422223 is about 596.6687827327.

Adding to 212422223 its reverse (322224212), we get a palindrome (534646435).

The spelling of 212422223 in words is "two hundred twelve million, four hundred twenty-two thousand, two hundred twenty-three".