22105210 has 8 divisors (see below), whose sum is σ = 39789396. Its totient is φ = 8842080.

The previous prime is 22105207. The next prime is 22105217. The reversal of 22105210 is 1250122.

It can be written as a sum of positive squares in 2 ways, for example, as 19509889 + 2595321 = 4417^2 + 1611^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22105217) 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, 1105251 + ... + 1105270.

Almost surely, 2^22105210 is an apocalyptic number.

22105210 is a deficient number, since it is larger than the sum of its proper divisors (17684186).

22105210 is a wasteful number, since it uses less digits than its factorization.

22105210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210528.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 22105210 is about 4701.6178066704. The cubic root of 22105210 is about 280.6498934602.

Adding to 22105210 its reverse (1250122), we get a palindrome (23355332).

The spelling of 22105210 in words is "twenty-two million, one hundred five thousand, two hundred ten".