22220147 has 2 divisors, whose sum is σ = 22220148. Its totient is φ = 22220146.

The previous prime is 22220137. The next prime is 22220153. The reversal of 22220147 is 74102222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22220147 - 2⁴ = 22220131 is a prime.

It is not a weakly prime, because it can be changed into another prime (22220117) 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, 11110073 + 11110074.

It is an arithmetic number, because the mean of its divisors is an integer number (11110074).

Almost surely, 2^22220147 is an apocalyptic number.

22220147 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220147 is an equidigital number, since it uses as much as digits as its factorization.

22220147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 22220147 is about 4713.8250922155. The cubic root of 22220147 is about 281.1354699438.

Adding to 22220147 its reverse (74102222), we get a palindrome (96322369).

The spelling of 22220147 in words is "twenty-two million, two hundred twenty thousand, one hundred forty-seven".