22000000198 has 8 divisors (see below), whose sum is σ = 36000000360. Its totient is φ = 10000000080.

The previous prime is 22000000133. The next prime is 22000000199. The reversal of 22000000198 is 89100000022.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 1000000009 = 22000000198 / (2 + 2 + 0 + 0 + 0 + 0 + 0 + 0 + 1 + 9 + 8).

22000000198 is a modest number, since divided by 198 gives 22 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000000199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499999983 + ... + 500000026.

It is an arithmetic number, because the mean of its divisors is an integer number (4500000045).

Almost surely, 2^22000000198 is an apocalyptic number.

22000000198 is a deficient number, since it is larger than the sum of its proper divisors (14000000162).

22000000198 is a wasteful number, since it uses less digits than its factorization.

22000000198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000000022.

The product of its (nonzero) digits is 288, while the sum is 22.

It can be divided in two parts, 22000000 and 198, that multiplied together give a square (4356000000 = 66000²).

The spelling of 22000000198 in words is "twenty-two billion, one hundred ninety-eight", and thus it is an aban number.