230222021 has 2 divisors, whose sum is σ = 230222022. Its totient is φ = 230222020.

The previous prime is 230221967. The next prime is 230222023. The reversal of 230222021 is 120222032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140161921 + 90060100 = 11839^2 + 9490^2 .

It is a cyclic number.

It is not a de Polignac number, because 230222021 - 2¹⁴ = 230205637 is a prime.

Together with 230222023, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 230221987 and 230222005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230222023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115111010 + 115111011.

It is an arithmetic number, because the mean of its divisors is an integer number (115111011).

Almost surely, 2^230222021 is an apocalyptic number.

It is an amenable number.

230222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

230222021 is an equidigital number, since it uses as much as digits as its factorization.

230222021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 230222021 is about 15173.0689380890. The cubic root of 230222021 is about 612.8896499424.

Adding to 230222021 its reverse (120222032), we get a palindrome (350444053).

The spelling of 230222021 in words is "two hundred thirty million, two hundred twenty-two thousand, twenty-one".