212232302231 has 2 divisors, whose sum is σ = 212232302232. Its totient is φ = 212232302230.

The previous prime is 212232302213. The next prime is 212232302299. The reversal of 212232302231 is 132203232212.

Together with previous prime (212232302213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212232302231 is a prime.

It is a super-2 number, since 2×212232302231² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 212232302197 and 212232302206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212232302731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106116151115 + 106116151116.

It is an arithmetic number, because the mean of its divisors is an integer number (106116151116).

Almost surely, 2^212232302231 is an apocalyptic number.

212232302231 is a deficient number, since it is larger than the sum of its proper divisors (1).

212232302231 is an equidigital number, since it uses as much as digits as its factorization.

212232302231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 212232302231 its reverse (132203232212), we get a palindrome (344435534443).

The spelling of 212232302231 in words is "two hundred twelve billion, two hundred thirty-two million, three hundred two thousand, two hundred thirty-one".