212751223 has 2 divisors, whose sum is σ = 212751224. Its totient is φ = 212751222.

The previous prime is 212751211. The next prime is 212751241. The reversal of 212751223 is 322157212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212751223 - 2⁹ = 212750711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212751263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106375611 + 106375612.

It is an arithmetic number, because the mean of its divisors is an integer number (106375612).

Almost surely, 2^212751223 is an apocalyptic number.

212751223 is a deficient number, since it is larger than the sum of its proper divisors (1).

212751223 is an equidigital number, since it uses as much as digits as its factorization.

212751223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 25.

The square root of 212751223 is about 14585.9940696546. The cubic root of 212751223 is about 596.9766644732.

The spelling of 212751223 in words is "two hundred twelve million, seven hundred fifty-one thousand, two hundred twenty-three".