22099243 has 4 divisors (see below), whose sum is σ = 22111920. Its totient is φ = 22086568.

The previous prime is 22099199. The next prime is 22099271. The reversal of 22099243 is 34299022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22099243 - 2¹³ = 22091051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22099543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3208 + ... + 7381.

It is an arithmetic number, because the mean of its divisors is an integer number (5527980).

Almost surely, 2^22099243 is an apocalyptic number.

22099243 is a deficient number, since it is larger than the sum of its proper divisors (12677).

22099243 is a wasteful number, since it uses less digits than its factorization.

22099243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12676.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 22099243 is about 4700.9831950348. The cubic root of 22099243 is about 280.6246386505.

The spelling of 22099243 in words is "twenty-two million, ninety-nine thousand, two hundred forty-three".