212424283 has 2 divisors, whose sum is σ = 212424284. Its totient is φ = 212424282.

The previous prime is 212424227. The next prime is 212424287. The reversal of 212424283 is 382424212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212424283 is a prime.

It is not a weakly prime, because it can be changed into another prime (212424287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106212141 + 106212142.

It is an arithmetic number, because the mean of its divisors is an integer number (106212142).

Almost surely, 2^212424283 is an apocalyptic number.

212424283 is a deficient number, since it is larger than the sum of its proper divisors (1).

212424283 is an equidigital number, since it uses as much as digits as its factorization.

212424283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6144, while the sum is 28.

The square root of 212424283 is about 14574.7824340537. The cubic root of 212424283 is about 596.6707114915.

Adding to 212424283 its reverse (382424212), we get a palindrome (594848495).

The spelling of 212424283 in words is "two hundred twelve million, four hundred twenty-four thousand, two hundred eighty-three".