2223216345 has 32 divisors (see below), whose sum is σ = 4070373120. Its totient is φ = 1015061760.

The previous prime is 2223216323. The next prime is 2223216371. The reversal of 2223216345 is 5436123222.

It is not a de Polignac number, because 2223216345 - 2⁵ = 2223216313 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74275 + ... + 99815.

It is an arithmetic number, because the mean of its divisors is an integer number (127199160).

Almost surely, 2^2223216345 is an apocalyptic number.

It is an amenable number.

2223216345 is a deficient number, since it is larger than the sum of its proper divisors (1847156775).

2223216345 is a wasteful number, since it uses less digits than its factorization.

2223216345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26385.

The product of its digits is 17280, while the sum is 30.

The square root of 2223216345 is about 47150.9951644713. The cubic root of 2223216345 is about 1305.1504443341.

Adding to 2223216345 its reverse (5436123222), we get a palindrome (7659339567).

The spelling of 2223216345 in words is "two billion, two hundred twenty-three million, two hundred sixteen thousand, three hundred forty-five".