212044223 has 4 divisors (see below), whose sum is σ = 216975528. Its totient is φ = 207112920.

The previous prime is 212044211. The next prime is 212044243. The reversal of 212044223 is 322440212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212044223 - 2¹⁰ = 212043199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212044195 and 212044204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212044243) 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, 2465588 + ... + 2465673.

It is an arithmetic number, because the mean of its divisors is an integer number (54243882).

Almost surely, 2^212044223 is an apocalyptic number.

212044223 is a deficient number, since it is larger than the sum of its proper divisors (4931305).

212044223 is an equidigital number, since it uses as much as digits as its factorization.

212044223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4931304.

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

The square root of 212044223 is about 14561.7383234283. The cubic root of 212044223 is about 596.3146535672.

Adding to 212044223 its reverse (322440212), we get a palindrome (534484435).

The spelling of 212044223 in words is "two hundred twelve million, forty-four thousand, two hundred twenty-three".