22129075 has 6 divisors (see below), whose sum is σ = 27440084. Its totient is φ = 17703240.

The previous prime is 22129061. The next prime is 22129097. The reversal of 22129075 is 57092122.

It is not a de Polignac number, because 22129075 - 2¹⁹ = 21604787 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 442557 + ... + 442606.

Almost surely, 2^22129075 is an apocalyptic number.

22129075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22129075 is a deficient number, since it is larger than the sum of its proper divisors (5311009).

22129075 is an equidigital number, since it uses as much as digits as its factorization.

22129075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885173 (or 885168 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 22129075 is about 4704.1550782261. The cubic root of 22129075 is about 280.7508545888.

The spelling of 22129075 in words is "twenty-two million, one hundred twenty-nine thousand, seventy-five".