212026231 has 2 divisors, whose sum is σ = 212026232. Its totient is φ = 212026230.

The previous prime is 212026229. The next prime is 212026247. The reversal of 212026231 is 132620212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212026231 - 2¹ = 212026229 is a prime.

It is a super-2 number, since 2×212026231² = 89910245264130722, which contains 22 as substring.

Together with 212026229, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 212026199 and 212026208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212026201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106013115 + 106013116.

It is an arithmetic number, because the mean of its divisors is an integer number (106013116).

Almost surely, 2^212026231 is an apocalyptic number.

212026231 is a deficient number, since it is larger than the sum of its proper divisors (1).

212026231 is an equidigital number, since it uses as much as digits as its factorization.

212026231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 212026231 is about 14561.1205269375. The cubic root of 212026231 is about 596.2977872793.

Adding to 212026231 its reverse (132620212), we get a palindrome (344646443).

The spelling of 212026231 in words is "two hundred twelve million, twenty-six thousand, two hundred thirty-one".