216224003 has 8 divisors (see below), whose sum is σ = 229077072. Its totient is φ = 203385856.

The previous prime is 216223981. The next prime is 216224051. The reversal of 216224003 is 300422612.

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 216224003 - 2⁶ = 216223939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216220003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42776 + ... + 47562.

It is an arithmetic number, because the mean of its divisors is an integer number (28634634).

Almost surely, 2^216224003 is an apocalyptic number.

216224003 is a deficient number, since it is larger than the sum of its proper divisors (12853069).

216224003 is a wasteful number, since it uses less digits than its factorization.

216224003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7461.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 216224003 is about 14704.5572187672. The cubic root of 216224003 is about 600.2073385282.

Adding to 216224003 its reverse (300422612), we get a palindrome (516646615).

The spelling of 216224003 in words is "two hundred sixteen million, two hundred twenty-four thousand, three".