16222205 has 4 divisors (see below), whose sum is σ = 19466652. Its totient is φ = 12977760.

The previous prime is 16222127. The next prime is 16222211. The reversal of 16222205 is 50222261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50222261 = 1361 ⋅36901.

It can be written as a sum of positive squares in 2 ways, for example, as 5555449 + 10666756 = 2357^2 + 3266^2 .

It is not a de Polignac number, because 16222205 - 2²² = 12027901 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1622216 + ... + 1622225.

It is an arithmetic number, because the mean of its divisors is an integer number (4866663).

Almost surely, 2^16222205 is an apocalyptic number.

It is an amenable number.

16222205 is a deficient number, since it is larger than the sum of its proper divisors (3244447).

16222205 is an equidigital number, since it uses as much as digits as its factorization.

16222205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244446.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 16222205 is about 4027.6798532157. The cubic root of 16222205 is about 253.1453543557.

Adding to 16222205 its reverse (50222261), we get a palindrome (66444466).

The spelling of 16222205 in words is "sixteen million, two hundred twenty-two thousand, two hundred five".