22020298 has 4 divisors (see below), whose sum is σ = 33030450. Its totient is φ = 11010148.

The previous prime is 22020293. The next prime is 22020311. The reversal of 22020298 is 89202022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18088009 + 3932289 = 4253^2 + 1983^2 .

It is not an unprimeable number, because it can be changed into a prime (22020293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505073 + ... + 5505076.

Almost surely, 2^22020298 is an apocalyptic number.

22020298 is a deficient number, since it is larger than the sum of its proper divisors (11010152).

22020298 is a wasteful number, since it uses less digits than its factorization.

22020298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11010151.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 22020298 is about 4692.5790350297. The cubic root of 22020298 is about 280.2900820222.

The spelling of 22020298 in words is "twenty-two million, twenty thousand, two hundred ninety-eight".