22331075 has 12 divisors (see below), whose sum is σ = 29821008. Its totient is φ = 16490400.

The previous prime is 22331053. The next prime is 22331159. The reversal of 22331075 is 57013322.

It is a de Polignac number, because none of the positive numbers 2^k-22331075 is a prime.

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 22331075.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34031 + ... + 34680.

It is an arithmetic number, because the mean of its divisors is an integer number (2485084).

Almost surely, 2^22331075 is an apocalyptic number.

22331075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22331075 is a deficient number, since it is larger than the sum of its proper divisors (7489933).

22331075 is a wasteful number, since it uses less digits than its factorization.

22331075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68734 (or 68729 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 22331075 is about 4725.5766843847. The cubic root of 22331075 is about 281.6025242098.

Adding to 22331075 its reverse (57013322), we get a palindrome (79344397).

The spelling of 22331075 in words is "twenty-two million, three hundred thirty-one thousand, seventy-five".