212464223 has 2 divisors, whose sum is σ = 212464224. Its totient is φ = 212464222.

The previous prime is 212464211. The next prime is 212464261. The reversal of 212464223 is 322464212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212464223 - 2⁴ = 212464207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212464192 and 212464201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212464123) 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, 106232111 + 106232112.

It is an arithmetic number, because the mean of its divisors is an integer number (106232112).

Almost surely, 2^212464223 is an apocalyptic number.

212464223 is a deficient number, since it is larger than the sum of its proper divisors (1).

212464223 is an equidigital number, since it uses as much as digits as its factorization.

212464223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 26.

The square root of 212464223 is about 14576.1525444817. The cubic root of 212464223 is about 596.7081044776.

The spelling of 212464223 in words is "two hundred twelve million, four hundred sixty-four thousand, two hundred twenty-three".