12021221009983 has 16 divisors (see below), whose sum is σ = 12153686908896. Its totient is φ = 11889414673920.

The previous prime is 12021221009969. The next prime is 12021221010041. The reversal of 12021221009983 is 38990012212021.

It is a cyclic number.

It is not a de Polignac number, because 12021221009983 - 2³³ = 12012631075391 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 (12021221009923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374675260 + ... + 374707342.

It is an arithmetic number, because the mean of its divisors is an integer number (759605431806).

Almost surely, 2^{12021221009983} is an apocalyptic number.

12021221009983 is a deficient number, since it is larger than the sum of its proper divisors (132465898913).

12021221009983 is a wasteful number, since it uses less digits than its factorization.

12021221009983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42234.

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 12021221009983 in words is "twelve trillion, twenty-one billion, two hundred twenty-one million, nine thousand, nine hundred eighty-three".