20350222 has 8 divisors (see below), whose sum is σ = 31350456. Its totient is φ = 9900072.

The previous prime is 20350217. The next prime is 20350243. The reversal of 20350222 is 22205302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20350196 and 20350205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137428 + ... + 137575.

It is an arithmetic number, because the mean of its divisors is an integer number (3918807).

Almost surely, 2^20350222 is an apocalyptic number.

20350222 is a deficient number, since it is larger than the sum of its proper divisors (11000234).

20350222 is a wasteful number, since it uses less digits than its factorization.

20350222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275042.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 20350222 is about 4511.1220333748. The cubic root of 20350222 is about 273.0170169233.

Adding to 20350222 its reverse (22205302), we get a palindrome (42555524).

The spelling of 20350222 in words is "twenty million, three hundred fifty thousand, two hundred twenty-two".