22198519 has 12 divisors (see below), whose sum is σ = 26946864. Its totient is φ = 18199104.

The previous prime is 22198513. The next prime is 22198591. The reversal of 22198519 is 91589122.

It is not a de Polignac number, because 22198519 - 2⁷ = 22198391 is a prime.

It is a super-2 number, since 2×22198519² = 985548491586722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22198513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8722 + ... + 10975.

It is an arithmetic number, because the mean of its divisors is an integer number (2245572).

Almost surely, 2^22198519 is an apocalyptic number.

22198519 is a deficient number, since it is larger than the sum of its proper divisors (4748345).

22198519 is a wasteful number, since it uses less digits than its factorization.

22198519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19734 (or 19727 counting only the distinct ones).

The product of its digits is 12960, while the sum is 37.

The square root of 22198519 is about 4711.5304307624. The cubic root of 22198519 is about 281.0442258460.

The spelling of 22198519 in words is "twenty-two million, one hundred ninety-eight thousand, five hundred nineteen".