2230240021 has 4 divisors (see below), whose sum is σ = 2282106112. Its totient is φ = 2178373932.

The previous prime is 2230239997. The next prime is 2230240027. The reversal of 2230240021 is 1200420322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2230240021 - 2⁹ = 2230239509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2230239977 and 2230240004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2230240027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25932981 + ... + 25933066.

It is an arithmetic number, because the mean of its divisors is an integer number (570526528).

Almost surely, 2^2230240021 is an apocalyptic number.

It is an amenable number.

2230240021 is a deficient number, since it is larger than the sum of its proper divisors (51866091).

2230240021 is an equidigital number, since it uses as much as digits as its factorization.

2230240021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51866090.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2230240021 is about 47225.4171077398. The cubic root of 2230240021 is about 1306.5234277060.

Adding to 2230240021 its reverse (1200420322), we get a palindrome (3430660343).

The spelling of 2230240021 in words is "two billion, two hundred thirty million, two hundred forty thousand, twenty-one".