9805990022 has 16 divisors (see below), whose sum is σ = 15539054640. Its totient is φ = 4628168928.

The previous prime is 9805989943. The next prime is 9805990037. The reversal of 9805990022 is 2200995089.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455273 + ... + 476324.

It is an arithmetic number, because the mean of its divisors is an integer number (971190915).

Almost surely, 2^9805990022 is an apocalyptic number.

9805990022 is a deficient number, since it is larger than the sum of its proper divisors (5733064618).

9805990022 is a wasteful number, since it uses less digits than its factorization.

9805990022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931895.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 9805990022 is about 99025.1989243142. The cubic root of 9805990022 is about 2140.4108756306.

The spelling of 9805990022 in words is "nine billion, eight hundred five million, nine hundred ninety thousand, twenty-two".