12020209984 has 28 divisors (see below), whose sum is σ = 23856110784. Its totient is φ = 6009221504.

The previous prime is 12020209963. The next prime is 12020209987. The reversal of 12020209984 is 48990202021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020209987) 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, 769419 + ... + 784885.

Almost surely, 2^12020209984 is an apocalyptic number.

It is an amenable number.

12020209984 is a deficient number, since it is larger than the sum of its proper divisors (11835900800).

12020209984 is a wasteful number, since it uses less digits than its factorization.

12020209984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27622 (or 27612 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 12020209984 in words is "twelve billion, twenty million, two hundred nine thousand, nine hundred eighty-four".