12200021983 has 4 divisors (see below), whose sum is σ = 12211856208. Its totient is φ = 12188187760.

The previous prime is 12200021971. The next prime is 12200021987. The reversal of 12200021983 is 38912000221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38912000221 = 71237 ⋅546233.

It is a cyclic number.

It is not a de Polignac number, because 12200021983 - 2³³ = 3610087391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200021987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5915566 + ... + 5917627.

It is an arithmetic number, because the mean of its divisors is an integer number (3052964052).

Almost surely, 2^12200021983 is an apocalyptic number.

12200021983 is a deficient number, since it is larger than the sum of its proper divisors (11834225).

12200021983 is a wasteful number, since it uses less digits than its factorization.

12200021983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11834224.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 12200021983 in words is "twelve billion, two hundred million, twenty-one thousand, nine hundred eighty-three".