212263223 has 2 divisors, whose sum is σ = 212263224. Its totient is φ = 212263222.

The previous prime is 212263217. The next prime is 212263253. The reversal of 212263223 is 322362212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212263223 - 2¹⁸ = 212001079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212263213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106131611 + 106131612.

It is an arithmetic number, because the mean of its divisors is an integer number (106131612).

Almost surely, 2^212263223 is an apocalyptic number.

212263223 is a deficient number, since it is larger than the sum of its proper divisors (1).

212263223 is an equidigital number, since it uses as much as digits as its factorization.

212263223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 23.

The square root of 212263223 is about 14569.2560894508. The cubic root of 212263223 is about 596.5198748714.

The spelling of 212263223 in words is "two hundred twelve million, two hundred sixty-three thousand, two hundred twenty-three".