10201021984 has 12 divisors (see below), whose sum is σ = 20083262094. Its totient is φ = 5100510976.

The previous prime is 10201021981. The next prime is 10201021993. The reversal of 10201021984 is 48912010201.

It can be written as a sum of positive squares in only one way, i.e., 7195789584 + 3005232400 = 84828^2 + 54820^2 .

It is not an unprimeable number, because it can be changed into a prime (10201021981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159390937 + ... + 159391000.

Almost surely, 2^10201021984 is an apocalyptic number.

It is an amenable number.

10201021984 is a deficient number, since it is larger than the sum of its proper divisors (9882240110).

10201021984 is an equidigital number, since it uses as much as digits as its factorization.

10201021984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318781947 (or 318781939 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 10201021984 in words is "ten billion, two hundred one million, twenty-one thousand, nine hundred eighty-four".