20090222 has 8 divisors (see below), whose sum is σ = 30184272. Its totient is φ = 10028800.

The previous prime is 20090219. The next prime is 20090227. The reversal of 20090222 is 22209002.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20090222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20090227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6554 + ... + 9117.

It is an arithmetic number, because the mean of its divisors is an integer number (3773034).

Almost surely, 2^20090222 is an apocalyptic number.

20090222 is a deficient number, since it is larger than the sum of its proper divisors (10094050).

20090222 is a wasteful number, since it uses less digits than its factorization.

20090222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16314.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 20090222 is about 4482.2117308311. The cubic root of 20090222 is about 271.8493164094.

Adding to 20090222 its reverse (22209002), we get a palindrome (42299224).

The spelling of 20090222 in words is "twenty million, ninety thousand, two hundred twenty-two".