22125830 has 16 divisors (see below), whose sum is σ = 40068000. Its totient is φ = 8796672.

The previous prime is 22125821. The next prime is 22125841. The reversal of 22125830 is 3852122.

22125830 = T₄₂₉ + T₄₃₀ + ... + T₅₉₅.

It is a junction number, because it is equal to n+sod(n) for n = 22125796 and 22125805.

It is a congruent number.

It is an unprimeable number.

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, 4955 + ... + 8294.

It is an arithmetic number, because the mean of its divisors is an integer number (2504250).

Almost surely, 2^22125830 is an apocalyptic number.

22125830 is a deficient number, since it is larger than the sum of its proper divisors (17942170).

22125830 is a wasteful number, since it uses less digits than its factorization.

22125830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13423.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 22125830 is about 4703.8101577338. The cubic root of 22125830 is about 280.7371308482.

Adding to 22125830 its reverse (3852122), we get a palindrome (25977952).

The spelling of 22125830 in words is "twenty-two million, one hundred twenty-five thousand, eight hundred thirty".