9800222128 has 40 divisors (see below), whose sum is σ = 19477347120. Its totient is φ = 4774133760.

The previous prime is 9800222123. The next prime is 9800222143. The reversal of 9800222128 is 8212220089.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 9800222093 and 9800222102.

It is not an unprimeable number, because it can be changed into a prime (9800222123) 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, 494751 + ... + 514177.

It is an arithmetic number, because the mean of its divisors is an integer number (486933678).

Almost surely, 2^9800222128 is an apocalyptic number.

It is an amenable number.

9800222128 is a deficient number, since it is larger than the sum of its proper divisors (9677124992).

9800222128 is a wasteful number, since it uses less digits than its factorization.

9800222128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20245 (or 20239 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 9800222128 is about 98996.0712755814. The cubic root of 9800222128 is about 2139.9911293195.

The spelling of 9800222128 in words is "nine billion, eight hundred million, two hundred twenty-two thousand, one hundred twenty-eight".