230122021 has 6 divisors (see below), whose sum is σ = 237785766. Its totient is φ = 222697800.

The previous prime is 230122003. The next prime is 230122027. The reversal of 230122021 is 120221032.

It can be written as a sum of positive squares in only one way, i.e., 222337921 + 7784100 = 14911^2 + 2790^2 .

It is not a de Polignac number, because 230122021 - 2²⁵ = 196567589 is a prime.

It is a super-2 number, since 2×230122021² = 105912289098248882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230121992 and 230122010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230122027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118770 + ... + 120691.

It is an arithmetic number, because the mean of its divisors is an integer number (39630961).

Almost surely, 2^230122021 is an apocalyptic number.

It is an amenable number.

230122021 is a deficient number, since it is larger than the sum of its proper divisors (7663745).

230122021 is an equidigital number, since it uses as much as digits as its factorization.

230122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239523 (or 239492 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 230122021 is about 15169.7732679167. The cubic root of 230122021 is about 612.8008981645.

Adding to 230122021 its reverse (120221032), we get a palindrome (350343053).

The spelling of 230122021 in words is "two hundred thirty million, one hundred twenty-two thousand, twenty-one".