22115125 has 8 divisors (see below), whose sum is σ = 27599832. Its totient is φ = 17692000.

The previous prime is 22115111. The next prime is 22115129. The reversal of 22115125 is 52151122.

It can be written as a sum of positive squares in 4 ways, for example, as 964324 + 21150801 = 982^2 + 4599^2 .

It is not a de Polignac number, because 22115125 - 2²¹ = 20017973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22115129) by changing a digit.

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, 88336 + ... + 88585.

It is an arithmetic number, because the mean of its divisors is an integer number (3449979).

Almost surely, 2^22115125 is an apocalyptic number.

22115125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22115125 is a deficient number, since it is larger than the sum of its proper divisors (5484707).

22115125 is an equidigital number, since it uses as much as digits as its factorization.

22115125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176936 (or 176926 counting only the distinct ones).

The product of its digits is 200, while the sum is 19.

The square root of 22115125 is about 4702.6721127461. The cubic root of 22115125 is about 280.6918477892.

Adding to 22115125 its reverse (52151122), we get a palindrome (74266247).

The spelling of 22115125 in words is "twenty-two million, one hundred fifteen thousand, one hundred twenty-five".