22099471 has 8 divisors (see below), whose sum is σ = 22865360. Its totient is φ = 21342528.

The previous prime is 22099457. The next prime is 22099487. The reversal of 22099471 is 17499022.

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-22099471 is a prime.

It is a super-3 number, since 3×22099471³ (a number of 23 digits) contains 333 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 (22099171) 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, 2995 + ... + 7291.

It is an arithmetic number, because the mean of its divisors is an integer number (2858170).

Almost surely, 2^22099471 is an apocalyptic number.

22099471 is a deficient number, since it is larger than the sum of its proper divisors (765889).

22099471 is a wasteful number, since it uses less digits than its factorization.

22099471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4473.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 22099471 is about 4701.0074452185. The cubic root of 22099471 is about 280.6256037242.

The spelling of 22099471 in words is "twenty-two million, ninety-nine thousand, four hundred seventy-one".