19982000201 has 4 divisors (see below), whose sum is σ = 20053110804. Its totient is φ = 19910889600.

The previous prime is 19982000179. The next prime is 19982000221. The reversal of 19982000201 is 10200028991.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10200028991 = 7417 ⋅1375223.

It can be written as a sum of positive squares in 2 ways, for example, as 12538624576 + 7443375625 = 111976^2 + 86275^2 .

It is a cyclic number.

It is not a de Polignac number, because 19982000201 - 2¹⁴ = 19981983817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19982000221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35554880 + ... + 35555441.

It is an arithmetic number, because the mean of its divisors is an integer number (5013277701).

Almost surely, 2^19982000201 is an apocalyptic number.

It is an amenable number.

19982000201 is a deficient number, since it is larger than the sum of its proper divisors (71110603).

19982000201 is an equidigital number, since it uses as much as digits as its factorization.

19982000201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71110602.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 19982000201 in words is "nineteen billion, nine hundred eighty-two million, two hundred one", and thus it is an aban number.