22010805 has 32 divisors (see below), whose sum is σ = 39974400. Its totient is φ = 11486016.

The previous prime is 22010803. The next prime is 22010827. The reversal of 22010805 is 50801022.

It is not a de Polignac number, because 22010805 - 2¹ = 22010803 is a prime.

It is a super-3 number, since 3×22010805³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22010803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4611 + ... + 8079.

It is an arithmetic number, because the mean of its divisors is an integer number (1249200).

Almost surely, 2^22010805 is an apocalyptic number.

It is an amenable number.

22010805 is a deficient number, since it is larger than the sum of its proper divisors (17963595).

22010805 is a wasteful number, since it uses less digits than its factorization.

22010805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3530 (or 3524 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 22010805 is about 4691.5674353035. The cubic root of 22010805 is about 280.2497983379.

Adding to 22010805 its reverse (50801022), we get a palindrome (72811827).

It can be divided in two parts, 220 and 10805, that added together give a square (11025 = 105²).

The spelling of 22010805 in words is "twenty-two million, ten thousand, eight hundred five".