22115075 has 12 divisors (see below), whose sum is σ = 28615728. Its totient is φ = 16922400.

The previous prime is 22115063. The next prime is 22115087. The reversal of 22115075 is 57051122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22115063) and next prime (22115087).

It is not a de Polignac number, because 22115075 - 2⁸ = 22114819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22115075.

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 11 ways as a sum of consecutive naturals, for example, 18656 + ... + 19805.

It is an arithmetic number, because the mean of its divisors is an integer number (2384644).

Almost surely, 2^22115075 is an apocalyptic number.

22115075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22115075 is a deficient number, since it is larger than the sum of its proper divisors (6500653).

22115075 is a wasteful number, since it uses less digits than its factorization.

22115075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38494 (or 38489 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 22115075 is about 4702.6667966166. Note that the first 3 decimals coincide. The cubic root of 22115075 is about 280.6916362507.

Adding to 22115075 its reverse (57051122), we get a palindrome (79166197).

The spelling of 22115075 in words is "twenty-two million, one hundred fifteen thousand, seventy-five".