22112147 has 2 divisors, whose sum is σ = 22112148. Its totient is φ = 22112146.

The previous prime is 22112141. The next prime is 22112149. The reversal of 22112147 is 74121122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22112147 - 2²² = 17917843 is a prime.

Together with 22112149, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22112141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056073 + 11056074.

It is an arithmetic number, because the mean of its divisors is an integer number (11056074).

Almost surely, 2^22112147 is an apocalyptic number.

22112147 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112147 is an equidigital number, since it uses as much as digits as its factorization.

22112147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 224, while the sum is 20.

The square root of 22112147 is about 4702.3554735898. The cubic root of 22112147 is about 280.6792479984.

Adding to 22112147 its reverse (74121122), we get a palindrome (96233269).

The spelling of 22112147 in words is "twenty-two million, one hundred twelve thousand, one hundred forty-seven".