12021550540424 has 32 divisors (see below), whose sum is σ = 22566453357600. Its totient is φ = 6003830353920.

The previous prime is 12021550540411. The next prime is 12021550540463. The reversal of 12021550540424 is 42404505512021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199792904 + ... + 199853064.

It is an arithmetic number, because the mean of its divisors is an integer number (705201667425).

Almost surely, 2^{12021550540424} is an apocalyptic number.

It is an amenable number.

12021550540424 is a deficient number, since it is larger than the sum of its proper divisors (10544902817176).

12021550540424 is a wasteful number, since it uses less digits than its factorization.

12021550540424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88613 (or 88609 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

The spelling of 12021550540424 in words is "twelve trillion, twenty-one billion, five hundred fifty million, five hundred forty thousand, four hundred twenty-four".