22189331 has 2 divisors, whose sum is σ = 22189332. Its totient is φ = 22189330.

The previous prime is 22189327. The next prime is 22189367. The reversal of 22189331 is 13398122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22189331 - 2² = 22189327 is a prime.

It is a super-2 number, since 2×22189331² = 984732820455122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22189294 and 22189303.

It is not a weakly prime, because it can be changed into another prime (22189231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11094665 + 11094666.

It is an arithmetic number, because the mean of its divisors is an integer number (11094666).

Almost surely, 2^22189331 is an apocalyptic number.

22189331 is a deficient number, since it is larger than the sum of its proper divisors (1).

22189331 is an equidigital number, since it uses as much as digits as its factorization.

22189331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 22189331 is about 4710.5552751242. Note that the first 3 decimals coincide. The cubic root of 22189331 is about 281.0054456208.

The spelling of 22189331 in words is "twenty-two million, one hundred eighty-nine thousand, three hundred thirty-one".