22243071 has 8 divisors (see below), whose sum is σ = 29755264. Its totient is φ = 14779800.

The previous prime is 22243063. The next prime is 22243097. The reversal of 22243071 is 17034222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22243071 - 2³ = 22243063 is a prime.

It is a super-2 number, since 2×22243071² = 989508415022082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22243051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11155 + ... + 12996.

It is an arithmetic number, because the mean of its divisors is an integer number (3719408).

Almost surely, 2^22243071 is an apocalyptic number.

22243071 is a deficient number, since it is larger than the sum of its proper divisors (7512193).

22243071 is a wasteful number, since it uses less digits than its factorization.

22243071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24461.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 22243071 is about 4716.2560363068. The cubic root of 22243071 is about 281.2321169864.

Adding to 22243071 its reverse (17034222), we get a palindrome (39277293).

The spelling of 22243071 in words is "twenty-two million, two hundred forty-three thousand, seventy-one".