22184231 has 2 divisors, whose sum is σ = 22184232. Its totient is φ = 22184230.

The previous prime is 22184209. The next prime is 22184237. The reversal of 22184231 is 13248122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22184231 - 2¹⁰ = 22183207 is a prime.

It is a super-2 number, since 2×22184231² = 984280210122722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22184197 and 22184206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22184237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11092115 + 11092116.

It is an arithmetic number, because the mean of its divisors is an integer number (11092116).

Almost surely, 2^22184231 is an apocalyptic number.

22184231 is a deficient number, since it is larger than the sum of its proper divisors (1).

22184231 is an equidigital number, since it uses as much as digits as its factorization.

22184231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 23.

The square root of 22184231 is about 4710.0139065612. The cubic root of 22184231 is about 280.9839151898.

The spelling of 22184231 in words is "twenty-two million, one hundred eighty-four thousand, two hundred thirty-one".