212332243 has 2 divisors, whose sum is σ = 212332244. Its totient is φ = 212332242.

The previous prime is 212332213. The next prime is 212332259. The reversal of 212332243 is 342233212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212332243 - 2⁹ = 212331731 is a prime.

It is a super-2 number, since 2×212332243² = 90169962834822098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212332213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106166121 + 106166122.

It is an arithmetic number, because the mean of its divisors is an integer number (106166122).

Almost surely, 2^212332243 is an apocalyptic number.

212332243 is a deficient number, since it is larger than the sum of its proper divisors (1).

212332243 is an equidigital number, since it uses as much as digits as its factorization.

212332243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 22.

The square root of 212332243 is about 14571.6245834155. The cubic root of 212332243 is about 596.5845231251.

Adding to 212332243 its reverse (342233212), we get a palindrome (554565455).

The spelling of 212332243 in words is "two hundred twelve million, three hundred thirty-two thousand, two hundred forty-three".