9985909022 has 4 divisors (see below), whose sum is σ = 14978863536. Its totient is φ = 4992954510.

The previous prime is 9985909009. The next prime is 9985909051. The reversal of 9985909022 is 2209095899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2209095899 = 103 ⋅21447533.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2496477254 + ... + 2496477257.

It is an arithmetic number, because the mean of its divisors is an integer number (3744715884).

Almost surely, 2^9985909022 is an apocalyptic number.

9985909022 is a deficient number, since it is larger than the sum of its proper divisors (4992954514).

9985909022 is a wasteful number, since it uses less digits than its factorization.

9985909022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4992954513.

The product of its (nonzero) digits is 1049760, while the sum is 53.

The square root of 9985909022 is about 99929.5202730404. The cubic root of 9985909022 is about 2153.4222779597.

The spelling of 9985909022 in words is "nine billion, nine hundred eighty-five million, nine hundred nine thousand, twenty-two".