22212110 has 16 divisors (see below), whose sum is σ = 40208400. Its totient is φ = 8834496.

The previous prime is 22212109. The next prime is 22212131. The reversal of 22212110 is 1121222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22212091 and 22212100.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 4415 + ... + 7994.

It is an arithmetic number, because the mean of its divisors is an integer number (2513025).

Almost surely, 2^22212110 is an apocalyptic number.

22212110 is a deficient number, since it is larger than the sum of its proper divisors (17996290).

22212110 is a wasteful number, since it uses less digits than its factorization.

22212110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12595.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 22212110 is about 4712.9725227292. The cubic root of 22212110 is about 281.1015704044.

Adding to 22212110 its reverse (1121222), we get a palindrome (23333332).

It can be divided in two parts, 22212 and 110, that added together give a palindrome (22322).

The spelling of 22212110 in words is "twenty-two million, two hundred twelve thousand, one hundred ten".