22206047 has 2 divisors, whose sum is σ = 22206048. Its totient is φ = 22206046.

The previous prime is 22205987. The next prime is 22206049. The reversal of 22206047 is 74060222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22206047 - 2⁶ = 22205983 is a prime.

Together with 22206049, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22206049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11103023 + 11103024.

It is an arithmetic number, because the mean of its divisors is an integer number (11103024).

Almost surely, 2^22206047 is an apocalyptic number.

22206047 is a deficient number, since it is larger than the sum of its proper divisors (1).

22206047 is an equidigital number, since it uses as much as digits as its factorization.

22206047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 22206047 is about 4712.3292542012. The cubic root of 22206047 is about 281.0759916561.

Adding to 22206047 its reverse (74060222), we get a palindrome (96266269).

The spelling of 22206047 in words is "twenty-two million, two hundred six thousand, forty-seven".