22214547 has 8 divisors (see below), whose sum is σ = 32910480. Its totient is φ = 14809680.

The previous prime is 22214539. The next prime is 22214567. The reversal of 22214547 is 74541222.

It is not a de Polignac number, because 22214547 - 2³ = 22214539 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 822761 = 22214547 / (2 + 2 + 2 + 1 + 4 + 5 + 4 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 22214547.

It is not an unprimeable number, because it can be changed into a prime (22214537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411354 + ... + 411407.

It is an arithmetic number, because the mean of its divisors is an integer number (4113810).

Almost surely, 2^22214547 is an apocalyptic number.

22214547 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

22214547 is a deficient number, since it is larger than the sum of its proper divisors (10695933).

22214547 is an equidigital number, since it uses as much as digits as its factorization.

22214547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822770 (or 822764 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 22214547 is about 4713.2310573533. The cubic root of 22214547 is about 281.1118503744. Note that the first 3 decimals are identical.

Adding to 22214547 its reverse (74541222), we get a palindrome (96755769).

The spelling of 22214547 in words is "twenty-two million, two hundred fourteen thousand, five hundred forty-seven".