22251105 has 20 divisors (see below), whose sum is σ = 39887892. Its totient is φ = 11867040.

The previous prime is 22251101. The next prime is 22251107. The reversal of 22251105 is 50115222.

It can be written as a sum of positive squares in 2 ways, for example, as 13483584 + 8767521 = 3672^2 + 2961^2 .

It is not a de Polignac number, because 22251105 - 2² = 22251101 is a prime.

It is a super-2 number, since 2×22251105² = 990223347442050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22251101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27066 + ... + 27875.

Almost surely, 2^22251105 is an apocalyptic number.

It is an amenable number.

22251105 is a deficient number, since it is larger than the sum of its proper divisors (17636787).

22251105 is an equidigital number, since it uses as much as digits as its factorization.

22251105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54958 (or 54949 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 22251105 is about 4717.1076943398. The cubic root of 22251105 is about 281.2659724262.

Adding to 22251105 its reverse (50115222), we get a palindrome (72366327).

The spelling of 22251105 in words is "twenty-two million, two hundred fifty-one thousand, one hundred five".