22224850217 has 4 divisors (see below), whose sum is σ = 22260755280. Its totient is φ = 22188945156.

The previous prime is 22224850213. The next prime is 22224850223. The reversal of 22224850217 is 71205842222.

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, and also an emirpimes, since its reverse is a distinct semiprime: 71205842222 = 2 ⋅35602921111.

It is a cyclic number.

It is not a de Polignac number, because 22224850217 - 2² = 22224850213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22224850211) 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, 17951603 + ... + 17952840.

It is an arithmetic number, because the mean of its divisors is an integer number (5565188820).

Almost surely, 2^22224850217 is an apocalyptic number.

It is an amenable number.

22224850217 is a deficient number, since it is larger than the sum of its proper divisors (35905063).

22224850217 is an equidigital number, since it uses as much as digits as its factorization.

22224850217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35905062.

The product of its (nonzero) digits is 35840, while the sum is 35.

The spelling of 22224850217 in words is "twenty-two billion, two hundred twenty-four million, eight hundred fifty thousand, two hundred seventeen".