212233237 has 2 divisors, whose sum is σ = 212233238. Its totient is φ = 212233236.

The previous prime is 212233193. The next prime is 212233243. The reversal of 212233237 is 732332212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174398436 + 37834801 = 13206^2 + 6151^2 .

It is a cyclic number.

It is not a de Polignac number, because 212233237 - 2¹⁹ = 211708949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212233267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106116618 + 106116619.

It is an arithmetic number, because the mean of its divisors is an integer number (106116619).

Almost surely, 2^212233237 is an apocalyptic number.

It is an amenable number.

212233237 is a deficient number, since it is larger than the sum of its proper divisors (1).

212233237 is an equidigital number, since it uses as much as digits as its factorization.

212233237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 25.

The square root of 212233237 is about 14568.2269683033. The cubic root of 212233237 is about 596.4917838263.

Adding to 212233237 its reverse (732332212), we get a palindrome (944565449).

The spelling of 212233237 in words is "two hundred twelve million, two hundred thirty-three thousand, two hundred thirty-seven".