22022247 has 16 divisors (see below), whose sum is σ = 32997888. Its totient is φ = 12962400.

The previous prime is 22022237. The next prime is 22022257. The reversal of 22022247 is 74222022.

It is an interprime number because it is at equal distance from previous prime (22022237) and next prime (22022257).

It is a de Polignac number, because none of the positive numbers 2^k-22022247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11379 + ... + 13172.

It is an arithmetic number, because the mean of its divisors is an integer number (2062368).

Almost surely, 2^22022247 is an apocalyptic number.

22022247 is a deficient number, since it is larger than the sum of its proper divisors (10975641).

22022247 is a wasteful number, since it uses less digits than its factorization.

22022247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24590.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 22022247 is about 4692.7866987537. The cubic root of 22022247 is about 280.2983511996.

Adding to 22022247 its reverse (74222022), we get a palindrome (96244269).

The spelling of 22022247 in words is "twenty-two million, twenty-two thousand, two hundred forty-seven".