10021000985 has 8 divisors (see below), whose sum is σ = 12548036160. Its totient is φ = 7668244144.

The previous prime is 10021000981. The next prime is 10021000987. The reversal of 10021000985 is 58900012001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10021000985 - 2² = 10021000981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10021000981) 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, 43569455 + ... + 43569684.

It is an arithmetic number, because the mean of its divisors is an integer number (1568504520).

Almost surely, 2^10021000985 is an apocalyptic number.

It is an amenable number.

10021000985 is a deficient number, since it is larger than the sum of its proper divisors (2527035175).

10021000985 is an equidigital number, since it uses as much as digits as its factorization.

10021000985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87139167.

The product of its (nonzero) digits is 720, while the sum is 26.

Adding to 10021000985 its reverse (58900012001), we get a palindrome (68921012986).

The spelling of 10021000985 in words is "ten billion, twenty-one million, nine hundred eighty-five", and thus it is an aban number.