22081199 has 8 divisors (see below), whose sum is σ = 25269888. Its totient is φ = 18901080.

The previous prime is 22081187. The next prime is 22081253. The reversal of 22081199 is 99118022.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22081199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22081159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4964 + ... + 8294.

It is an arithmetic number, because the mean of its divisors is an integer number (3158736).

Almost surely, 2^22081199 is an apocalyptic number.

22081199 is a deficient number, since it is larger than the sum of its proper divisors (3188689).

22081199 is an equidigital number, since it uses as much as digits as its factorization.

22081199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4285.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 22081199 is about 4699.0636301289. The cubic root of 22081199 is about 280.5482413165.

The spelling of 22081199 in words is "twenty-two million, eighty-one thousand, one hundred ninety-nine".