22822161 has 4 divisors (see below), whose sum is σ = 30429552. Its totient is φ = 15214772.

The previous prime is 22822153. The next prime is 22822183. The reversal of 22822161 is 16122822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22822161 - 2³ = 22822153 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22822361) 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, 3803691 + ... + 3803696.

It is an arithmetic number, because the mean of its divisors is an integer number (7607388).

Almost surely, 2^22822161 is an apocalyptic number.

It is an amenable number.

22822161 is a deficient number, since it is larger than the sum of its proper divisors (7607391).

22822161 is an equidigital number, since it uses as much as digits as its factorization.

22822161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7607390.

The product of its digits is 768, while the sum is 24.

The square root of 22822161 is about 4777.2545462849. The cubic root of 22822161 is about 283.6518290029.

Adding to 22822161 its reverse (16122822), we get a palindrome (38944983).

The spelling of 22822161 in words is "twenty-two million, eight hundred twenty-two thousand, one hundred sixty-one".