230221999 has 16 divisors (see below), whose sum is σ = 266595840. Its totient is φ = 194738400.

The previous prime is 230221967. The next prime is 230222021. The reversal of 230221999 is 999122032.

It is a cyclic number.

It is not a de Polignac number, because 230221999 - 2⁵ = 230221967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230221919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182232 + ... + 183490.

It is an arithmetic number, because the mean of its divisors is an integer number (16662240).

Almost surely, 2^230221999 is an apocalyptic number.

230221999 is a deficient number, since it is larger than the sum of its proper divisors (36373841).

230221999 is a wasteful number, since it uses less digits than its factorization.

230221999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 230221999 is about 15173.0682131202. The cubic root of 230221999 is about 612.8896304198.

The spelling of 230221999 in words is "two hundred thirty million, two hundred twenty-one thousand, nine hundred ninety-nine".