22004210 has 16 divisors (see below), whose sum is σ = 39663000. Its totient is φ = 8789376.

The previous prime is 22004189. The next prime is 22004221. The reversal of 22004210 is 1240022.

It can be written as a sum of positive squares in 4 ways, for example, as 16104169 + 5900041 = 4013^2 + 2429^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22004191 and 22004200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10316 + ... + 12264.

Almost surely, 2^22004210 is an apocalyptic number.

22004210 is a deficient number, since it is larger than the sum of its proper divisors (17658790).

22004210 is a wasteful number, since it uses less digits than its factorization.

22004210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 22004210 is about 4690.8645258630. The cubic root of 22004210 is about 280.2218055401.

Adding to 22004210 its reverse (1240022), we get a palindrome (23244232).

The spelling of 22004210 in words is "twenty-two million, four thousand, two hundred ten".