22198351 has 8 divisors (see below), whose sum is σ = 25717664. Its totient is φ = 18766080.

The previous prime is 22198339. The next prime is 22198367. The reversal of 22198351 is 15389122.

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

It is a cyclic number.

It is not a de Polignac number, because 22198351 - 2²¹ = 20101199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22198321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21210 + ... + 22231.

It is an arithmetic number, because the mean of its divisors is an integer number (3214708).

Almost surely, 2^22198351 is an apocalyptic number.

22198351 is a deficient number, since it is larger than the sum of its proper divisors (3519313).

22198351 is an equidigital number, since it uses as much as digits as its factorization.

22198351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43521.

The product of its digits is 4320, while the sum is 31.

The square root of 22198351 is about 4711.5126021268. The cubic root of 22198351 is about 281.0435168565.

The spelling of 22198351 in words is "twenty-two million, one hundred ninety-eight thousand, three hundred fifty-one".