22216204215 has 12 divisors (see below), whose sum is σ = 38508087384. Its totient is φ = 11848642224.

The previous prime is 22216204211. The next prime is 22216204217. The reversal of 22216204215 is 51240261222.

22216204215 is a `hidden beast` number, since 2 + 2 + 21 + 620 + 4 + 2 + 15 = 666.

It is not a de Polignac number, because 22216204215 - 2² = 22216204211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22216204211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246846669 + ... + 246846758.

It is an arithmetic number, because the mean of its divisors is an integer number (3209007282).

Almost surely, 2^22216204215 is an apocalyptic number.

22216204215 is a deficient number, since it is larger than the sum of its proper divisors (16291883169).

22216204215 is a wasteful number, since it uses less digits than its factorization.

22216204215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493693438 (or 493693435 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 22216204215 its reverse (51240261222), we get a palindrome (73456465437).

The spelling of 22216204215 in words is "twenty-two billion, two hundred sixteen million, two hundred four thousand, two hundred fifteen".