223025021 has 8 divisors (see below), whose sum is σ = 234988320. Its totient is φ = 211084272.

The previous prime is 223025017. The next prime is 223025029. The reversal of 223025021 is 120520322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223025021 - 2² = 223025017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223025029) 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 7 ways as a sum of consecutive naturals, for example, 17051 + ... + 27143.

It is an arithmetic number, because the mean of its divisors is an integer number (29373540).

Almost surely, 2^223025021 is an apocalyptic number.

It is an amenable number.

223025021 is a deficient number, since it is larger than the sum of its proper divisors (11963299).

223025021 is a wasteful number, since it uses less digits than its factorization.

223025021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11275.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 223025021 is about 14934.0222646144. The cubic root of 223025021 is about 606.4353788000.

Adding to 223025021 its reverse (120520322), we get a palindrome (343545343).

The spelling of 223025021 in words is "two hundred twenty-three million, twenty-five thousand, twenty-one".