22128010 has 16 divisors (see below), whose sum is σ = 40005576. Its totient is φ = 8812288.

The previous prime is 22127947. The next prime is 22128011. The reversal of 22128010 is 1082122.

It can be written as a sum of positive squares in 4 ways, for example, as 8415801 + 13712209 = 2901^2 + 3703^2 .

It is not an unprimeable number, because it can be changed into a prime (22128011) 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 7 ways as a sum of consecutive naturals, for example, 2419 + ... + 7078.

Almost surely, 2^22128010 is an apocalyptic number.

22128010 is a deficient number, since it is larger than the sum of its proper divisors (17877566).

22128010 is a wasteful number, since it uses less digits than its factorization.

22128010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9737.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 22128010 is about 4704.0418790653. The cubic root of 22128010 is about 280.7463506431.

The spelling of 22128010 in words is "twenty-two million, one hundred twenty-eight thousand, ten".