12000202021 has 4 divisors (see below), whose sum is σ = 12387305344. Its totient is φ = 11613098700.

The previous prime is 12000202013. The next prime is 12000202061. The reversal of 12000202021 is 12020200021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12000202021 - 2³ = 12000202013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000201989 and 12000202007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000202061) 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, 193551615 + ... + 193551676.

It is an arithmetic number, because the mean of its divisors is an integer number (3096826336).

Almost surely, 2^12000202021 is an apocalyptic number.

It is an amenable number.

12000202021 is a deficient number, since it is larger than the sum of its proper divisors (387103323).

12000202021 is an equidigital number, since it uses as much as digits as its factorization.

12000202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387103322.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 12000202021 its reverse (12020200021), we get a palindrome (24020402042).

The spelling of 12000202021 in words is "twelve billion, two hundred two thousand, twenty-one".