22213210 has 8 divisors (see below), whose sum is σ = 39983796. Its totient is φ = 8885280.

The previous prime is 22213183. The next prime is 22213259. The reversal of 22213210 is 1231222.

It can be written as a sum of positive squares in 2 ways, for example, as 22212369 + 841 = 4713^2 + 29^2 .

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

It is an unprimeable number.

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, 1110651 + ... + 1110670.

Almost surely, 2^22213210 is an apocalyptic number.

22213210 is a deficient number, since it is larger than the sum of its proper divisors (17770586).

22213210 is a wasteful number, since it uses less digits than its factorization.

22213210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221328.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 22213210 is about 4713.0892204583. The cubic root of 22213210 is about 281.1062106153.

Adding to 22213210 its reverse (1231222), we get a palindrome (23444432).

The spelling of 22213210 in words is "twenty-two million, two hundred thirteen thousand, two hundred ten".