22106817 has 16 divisors (see below), whose sum is σ = 34678080. Its totient is φ = 13870656.

The previous prime is 22106789. The next prime is 22106857. The reversal of 22106817 is 71860122.

It is not a de Polignac number, because 22106817 - 2⁶ = 22106753 is a prime.

It is a super-2 number, since 2×22106817² = 977422715742978, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22106857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23623 + ... + 24540.

It is an arithmetic number, because the mean of its divisors is an integer number (2167380).

Almost surely, 2^22106817 is an apocalyptic number.

22106817 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

22106817 is a deficient number, since it is larger than the sum of its proper divisors (12571263).

22106817 is a wasteful number, since it uses less digits than its factorization.

22106817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48189 (or 48183 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 22106817 is about 4701.7887021856. The cubic root of 22106817 is about 280.6566941715.

Adding to 22106817 its reverse (71860122), we get a palindrome (93966939).

The spelling of 22106817 in words is "twenty-two million, one hundred six thousand, eight hundred seventeen".