22235247 has 12 divisors (see below), whose sum is σ = 32174064. Its totient is φ = 14797440.

The previous prime is 22235231. The next prime is 22235267. The reversal of 22235247 is 74253222.

It is not a de Polignac number, because 22235247 - 2⁴ = 22235231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22235247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22235267) 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 in 11 ways as a sum of consecutive naturals, for example, 4222 + ... + 7892.

It is an arithmetic number, because the mean of its divisors is an integer number (2681172).

Almost surely, 2^22235247 is an apocalyptic number.

22235247 is a deficient number, since it is larger than the sum of its proper divisors (9938817).

22235247 is a wasteful number, since it uses less digits than its factorization.

22235247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4350 (or 4347 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 22235247 is about 4715.4264918457. The cubic root of 22235247 is about 281.1991386546.

Adding to 22235247 its reverse (74253222), we get a palindrome (96488469).

The spelling of 22235247 in words is "twenty-two million, two hundred thirty-five thousand, two hundred forty-seven".