22106827 has 4 divisors (see below), whose sum is σ = 22469296. Its totient is φ = 21744360.

The previous prime is 22106789. The next prime is 22106857. The reversal of 22106827 is 72860122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22106827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22106795 and 22106804.

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 3 ways as a sum of consecutive naturals, for example, 181143 + ... + 181264.

It is an arithmetic number, because the mean of its divisors is an integer number (5617324).

Almost surely, 2^22106827 is an apocalyptic number.

22106827 is a deficient number, since it is larger than the sum of its proper divisors (362469).

22106827 is an equidigital number, since it uses as much as digits as its factorization.

22106827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362468.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 22106827 is about 4701.7897656105. The cubic root of 22106827 is about 280.6567364897.

Adding to 22106827 its reverse (72860122), we get a palindrome (94966949).

The spelling of 22106827 in words is "twenty-two million, one hundred six thousand, eight hundred twenty-seven".