212023001 has 2 divisors, whose sum is σ = 212023002. Its totient is φ = 212023000.

The previous prime is 212022991. The next prime is 212023003. The reversal of 212023001 is 100320212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197430601 + 14592400 = 14051^2 + 3820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212023001 is a prime.

It is a Sophie Germain prime.

Together with 212023003, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (212023003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106011500 + 106011501.

It is an arithmetic number, because the mean of its divisors is an integer number (106011501).

Almost surely, 2^212023001 is an apocalyptic number.

It is an amenable number.

212023001 is a deficient number, since it is larger than the sum of its proper divisors (1).

212023001 is an equidigital number, since it uses as much as digits as its factorization.

212023001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 212023001 is about 14561.0096147211. The cubic root of 212023001 is about 596.2947592709.

Adding to 212023001 its reverse (100320212), we get a palindrome (312343213).

The spelling of 212023001 in words is "two hundred twelve million, twenty-three thousand, one".